As an instructive (gravitational potential) energy approach, we show that the elliptic roly-poly has
a richer and more useful profile (including the tilted configuration) of stable equilibria than
conventional spherical or cylindrical roly-polys.
Some physical applications of generalized Lambert functions
In this paper we show two applications for a generalization of the Lambert W function. Explicit
calculations are given for the inverse Langevin function that plays an important role in the study
of paramagnetic materials, and for the dispersion equat…
Comment on ‘Towards addressing transient learning challenges in undergraduate physics: an example from electrostatics’
We make some crucial remarks about the recent presentation by Fredlund et al (2015 Eur. J. Phys. 36
[http:// http://dx.doi.org/10.1088/0143-0807/36/5/055002] 055002 ) considering the tutorial problem
raised therein. After working out the velocity of …
Levitating a strip of paper by blowing over it
It is shown that if you blow vigorously over a curved strip of paper, it levitates into the shape of
a catenary. This result quantifies a common classroom demonstration and is a pedagogically useful
addition to other studies of catenaries in an inter…
Comment on ?Towards addressing transient learning challenges in undergraduate physics: an example from electrostatics?
We make some crucial remarks about the recent presentation by Fredlund et al (2015 Eur. J. Phys. 36
[http:// http://dx.doi.org/10.1088/0143-0807/36/5/055002] 055002 ) considering the tutorial problem
raised therein. After working out the velocity of …
Rainbows in nature: recent advances in observation and theory
This topical review presents an overview of the common and less common observations of rainbows in
natural rainfall, and the theoretical concepts that have been developed for their explanation.
Mainly throughout the last 20 years, many new and intrig…
Thomas–Fermi approach to density functional theory: binding energy for atomic systems
In this work, we re-examine the Thomas–Fermi formalism as an approach to the calculation of atomic
binding energies. We focus on the concept of electron density as the central magnitude, and the way
in which the different contributions to the total…
Thomas?Fermi approach to density functional theory: binding energy for atomic systems
In this work, we re-examine the Thomas?Fermi formalism as an approach to the calculation of atomic
binding energies. We focus on the concept of electron density as the central magnitude, and the way
in which the different contributions to the total e…
A general gauge for the electromagnetic potentials and the continuity equation
In a general gauge choice fixing the divergence of the vector potential, an explicit retarded
solution of the corresponding dynamical equations for the electromagnetic potentials satisfies the
gauge choice if and only if the continuity equation is sa…
Generators of dynamical symmetries and the correct gauge transformation in the Landau level problem: use of pseudomomentum and pseudo-angular momentum
Due to the importance of gauge symmetry in all fields of physics, and motivated by an article
written almost three decades ago that warns against a naive handling of gauge transformations in the
Landau level problem (a quantum electron moving in a sp…
Visualizing rotations and composition of rotations with the Rodrigues vector
The purpose of this paper is to show that the mathematical treatment of three-dimensional rotations
can be simplified, and its geometrical understanding improved, using the Rodrigues vector
representation. We present a novel geometrical interpretatio…
Breaking Newton’s third law: electromagnetic instances
In this work, three instances are discussed within electromagnetism which highlight failures in the
validity of Newton’s third law, all of them related to moving charged particles. It is well known
that electromagnetic theory paved the way for rela…
Breaking Newton?s third law: electromagnetic instances
In this work, three instances are discussed within electromagnetism which highlight failures in the
validity of Newton?s third law, all of them related to moving charged particles. It is well known
that electromagnetic theory paved the way for relati…
Ice cubes on drinks cans—the answer
In my article (Featonby 2016 Phys. Educ . 51 [http://dx.doi.org/10.1088/0031-9120/51/4/047002]
047002 ) I asked what happens when ice cubes are placed on top of drinks can in saucers of warm
water?
Does metaphysics have a role in physics?
‘HowTheLightGetsIn2016’ is a philosophy and music festival at Hay-on-Wye. Physicists from across the
globe come to discuss and debate topical ideas, often at the edge of present understanding. David
Richardson met up with Professor Bernard Carr a…
Reviews
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Ice cubes on drinks cans?the answer
In my article (Featonby 2016 Phys. Educ . 51 [http://dx.doi.org/10.1088/0031-9120/51/4/047002]
047002 ) I asked what happens when ice cubes are placed on top of drinks can in saucers of warm
water?
Projectile motion of a once rotating object: physical quantities at the point of return
Vertical circular motion is a widely used example to explain non-uniform circular motion in most
undergraduate general physics textbooks. However, most of these textbooks do not elaborate on the
case when this motion turns into projectile motion unde…
Symmetry of the Lorentz boost: the relativity of colocality and Lorentz time contraction
Since the Lorentz boost is symmetric under exchange of x and ct , special relativistic phenomena
will also manifest this symmetry. Firstly, simultaneity becomes paired with ‘colocality’ (‘at the
same place’), and the ‘Relativity of Colocali…
Development and validation of the photoelectric effect concept inventory
This study aims to develop a multiple-choice instrument for determining students’ concepts about the
photoelectric effect. To develop the instrument, 30 students taking the Modern Physics course were
interviewed to determine their misconceptions ab…
Aerodynamics in the amusement park: interpreting sensor data for acceleration and rotation
The sky roller ride depends on interaction with the air to create a rolling motion. In this paper,
we analyse forces, torque and angular velocities during different parts of the ride, combining a
theoretical analysis, with photos, videos as well as w…
Exploring electrical resistance: a novel kinesthetic model helps to resolve some misconceptions
A simple ‘hands on’ physical model is described which displays analogous behaviour to some aspects
of the free electron theory of metals. Using it students can get a real feel for what is going on
inside a metallic conductor. Ohms Law, the temper…
Particle physics for primary schools—enthusing future physicists
In recent years, the realisation that children make decisions and choices about subjects they like
in primary school, became widely understood. For this reason academic establishments focus some of
their public engagement activities towards the young…
The Carnot cycle and the teaching of thermodynamics: a historical approach
The Carnot cycle is a topic that is traditionally present in introductory physics courses dedicated
to the teaching of thermodynamics, playing an essential role in introducing the concept of Entropy
and the consequent formulation of the second Law. I…
Air density measurement with a falling A4 sheet
We propose a simple experiment on the air density measurement which does not require any special
equipment: just an A4 sheet of paper, a stopwatch and a ruler. The discussed method uses the most
basic air resistance model.
Gender and physics: a sociological approach
In this paper, I take a sociological approach to understanding the under-representation of gender
and physics. I argue that gender is something we do not something that we are. Thus, every aspect of
our behaviour, including our engagement (or not) wi…
The rain-powered cart
A frictionless cart in the shape of a right triangle (with the vertical side forward) is elastically
impacted by vertically falling raindrops. The speed of the cart as a function of time can be
analytically deduced as an exercise in the use of trigon…
Revealing a quantum feature of dimensionless uncertainty in linear and quadratic potentials by changing potential intervals
As an undergraduate exercise, in an article (2012 Am. J. Phys. 80
[http://dx.doi.org/10.1119/1.4720101] 780–14 ), quantum and classical uncertainties for
dimensionless variables of position and momentum were evaluated in three potentials: infinite …
Understanding zero-point energy in the context of classical electromagnetism
Today’s textbooks of electromagnetism give the particular solution to Maxwell’s equations involving
the integral over the charge and current sources at retarded times. However, the texts fail to
emphasise that the choice of the incoming-wave boun…
Computations in quantum mechanics made easy
Convenient and simple numerical techniques for performing quantum computations based on matrix
representations of Hilbert space operators are presented and illustrated by various examples. The
applications include the calculations of spectral and dyn…
Preparation of graphite conductive paint and its application to the construction of RC circuits on paper
We describe a simple procedure for the preparation of graphite-based conductive paint and determine
its basic transport properties when applied, comparing them to those of pencil strokes. Ohm’s law
was fulfilled on the applied paint, which makes it…
An investigation into the effectiveness of smartphone experiments on students’ conceptual knowledge about acceleration
This study is a first attempt to investigate effectiveness of smartphone-based activities on
students’ conceptual understanding of acceleration. 143 secondary school students (15–16 years old)
were involved in two types of activities: smartphone-…
Corrigendum: Basic ideas and concepts in hot wire anemometry: an experimental approach for introductory physics students (2016 Phys. Educ . 51 015008)
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‘From the cat’s point of view’: upper secondary physics students’ reflections on Schrödinger’s thought experiment
The thought experiment ‘Schrödinger’s cat’ exposes fundamental dilemmas in how we interpret quantum
physics, and has a potential for deepening students’ understanding of this part of modern physics,
including its philosophical consequences. …
Comment about the use of Monte-Carlo methodology for the representation of atomic electronic densities
Representations of atomic orbitals based on Monte-Carlo (MC) approaches are not always correct when
using various sets of orthogonal coordinates other than Cartesian coordinates. The analysis proposed
here gives elements for a proper use of MC method…
Bimetal switches in an AND logic gate
In this frontline, we use bimetal switches to provide inputs in an electrical AND logic gate. These
switches can be obtained from the pre-heat starters of fluorescent lamps, by safely removing the
glass enclosure. They may be activated by small open …
Measuring g using a rotating liquid mirror: enhancing laboratory learning
We describe a low-cost yet experimentally challenging method to measure the acceleration of gravity,
g , using a liquid in a rotating bowl and a laser pointer. The idea underpinning this novel method
is that the rotating liquid surface will form a pa…
Gamification: using elements of video games to improve engagement in an undergraduate physics class
Gamification has been extensively implemented and studied in corporate settings and has proven to be
more effective than traditional employee-training programs, however, few classroom studies of
gamification have been reported in the literature. Our …
Surveying college introductory physics students’ attitudes and approaches to problem solving
Students’ attitudes and approaches to problem solving in physics can greatly impact their actual
problem solving practices and also influence their motivation to learn and ultimately the
development of expertise. We developed and validated an attit…
Applying classical geometry intuition to quantum spin
Using concepts of geometric orthogonality and linear independence, we logically deduce the form of
the Pauli spin matrices and the relationships between the three spatially orthogonal basis sets of
the spin-1/2 system. Rather than a mathematically ri…
The biomechanics of solids and fluids: the physics of life
Biomechanics borrows and extends engineering techniques to study the mechanical properties of
organisms and their environments. Like physicists and engineers, biomechanics researchers tend to
specialize on either fluids or solids (but some do both). …
Facilitating conceptual change in students’ understanding of concepts related to pressure
The aim of this research was to explore the effects of three different types of methods of learning
physics (conceptual change-based, real life context-based and traditional learning) on high school
physics students in the 11th grade in terms of conc…
Integral equations for the electromagnetic field in dielectrics
We study static the electric field and electromagnetic waves in dielectric media. In contrast to the
standard approach, we use, formulate and solve integral equations for the field. We discuss the case
of an electrostatic field of a point charge plac…
Modelling of a collision between two smartphones
In the predominant approach in physics textbooks, the collision between particles is treated as a
black box, where no physical quantity can be measured. This approach becomes even more evident in
experimental classes where collisions are the simplest…
Comment on ‘From the pinhole camera to the shape of a lens: the camera-obscura reloaded’
In the article ‘From the pinhole camera to the shape of a lens: the camera-obscura reloaded’ ( Phys.
Educ . 50 [http://dx.doi.org/10.1088/0031-9120/50/6/706] 706
[http://dx.doi.org/10.1088/0031-9120/50/6/706] ), the authors show that a prism arra…
Introducing electric fields
The clear introduction of basic concepts and definitions is crucial for teaching any topic in
physics. I have always found it difficult to teach fields. While searching for better explanations I
hit on an approach of reading foundational texts and el…
Corrigendum: Dynamics of a sliding ladder leaning against a wall (2015 Phys. Educ . 50 329–34)
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Bringing the magic of light to remote areas where resources are scarce: beautiful demonstrations of interference patterns using laser pens and fibres
The training of physics teachers in remote areas in the developing world requires dedicated trainers
(who typically are volunteers), as well as robust logistics. The latter must include the supply of
equipment for experiments in the classroom. This t…
A Laplace transform approach to the reflection and transmission of electrons at semi-infinite potential barriers
The logic of the Schrödinger equation may be understood most readily by a consideration of a very
important class of problems, i.e. those of the transmission and reflection of electrons through
semi-infinite potential barriers. In this paper I revis…
Playing with a bulb lamp: RTL measurements and modelling
The electric, thermal and optical behaviour of an incandescent lamp was studied by a real time
laboratory (RTL) apparatus, using two voltage probes and a light probe. The software STELLA was used
to model the phenomena and to analyse the transient be…
Low cost 3D-printing used in an undergraduate project: an integrating sphere for measurement of photoluminescence quantum yield
We report upon the exploitation of the latest 3D printing technologies to provide low-cost
instrumentation solutions, for use in an undergraduate level final-year project. The project
addresses prescient research issues in optoelectronics, which woul…
Fluid dynamics in porous media with Sailfish
In this work we show the application of Sailfish to the study of fluid dynamics in porous media.
Sailfish is an open-source software based on the lattice-Boltzmann method. This application of
computational fluid dynamics is of particular interest to …
Electromagnetic potentials basis for energy density and power flux
In rounding out the education of students in advanced courses in applied electromagnetics it is
incumbent on us as mentors to raise issues that encourage appreciation of certain subtle aspects
that are often overlooked during first exposure to the fi…
The Clifford algebra of physical space and Dirac theory
The claim found in many textbooks that the Dirac equation cannot be written solely in terms of Pauli
matrices is shown to not be completely true. It is only true as long as the term ##IMG##
[http://ej.iop.org/images/0143-0807/37/5/055407/ejpaa2c9bieq…
Erratum: Yet another encounter with the golden ratio: balancing laminar bodies on the edge (2016 Eur. J. Phys. 37 055001 [http://dx.doi.org/10.1088/0143-0807/37/5/055001] )
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An axiomatic approach to Maxwell’s equations
This paper suggests an axiomatic approach to Maxwell’s equations. The basis of this approach is a
theorem formulated for two sets of functions localized in space and time. If each set satisfies a
continuity equation then the theorem provides an int…
The Sky on Earth project: a synergy between formal and informal astronomy education
In this paper we present the Sky on Earth project funded in 2008 by the Italian Ministry of
Instruction, Research and University, inside its annual public outreach education program. The
project’s goal was to realise a stable and open-access astron…
Using Tracker to prove the simple harmonic motion equation
Simple harmonic motion (SHM) is a common topic for many students to study. Using the free, though
versatile, motion tracking software; Tracker , we can extend the students experience and show that
the general equation for SHM does lead to the correct…
Working with the nature of science in physics class: turning ‘ordinary’ classroom situations into nature of science learning situations
In the science education research field there is a large body of literature on the ‘nature of
science’ (NOS). NOS captures issues about what characterizes the research process as well as the
scientific knowledge. Here we, in line with a broad bod…
Book Review – Networked Learning
Chris Jones book uniquely and thoroughly explores networked learning as a relational perspective between society, the individual learner, and most of the salient points in between. Everyone involved in higher education, should read and digest this book…
Structural Relationships of Environments, Individuals, and Learning Outcomes in Korean Online University Settings
This study examines relationships of instructional environments, learner traits, and learning outcomes in the context of an online university course in Korea which has an advanced information technology background and rich e-learning experiences. Howev…
Perceived Service Quality and Student Loyalty in an Online University
This paper examines the influence that student perceived quality of service (PSQ) has on continuance intention and willingness to recommend a course in a fully online university. A holistic view of the service provided by the university is taken. It is not only the effect of the teaching which is examined, but also that of the administrative services, the additional services, and the virtual learning environment (user interface). Through a survey completed by 1,870 students and the subsequent analysis using structural equations, we found that each of these services has a significant impact on the students’ PSQ, their level of satisfaction, and, as a result, their loyalty and willingness to recommend the university. The study found that the perceived quality of the administrative services can have a comparatively higher impact on student satisfaction than the other services. PSQ is shown to have also a direct impact on student loyalty and recommendations. Moreover, as a whole, non-teaching services have a greater impact on loyalty and willingness to recommend than teaching service.
The peculiarities of the process of providing educational services in a virtual environment (such as the absence of face-to-face interaction between student and teacher and the lack of conventional tangible elements which act as benchmarks for quality of service) are well-known. The relationship established in the literature between the constructs of service quality, satisfaction, loyalty, and willingness to recommend the service in an offline environment can also be seen in this context.
The interconnection of factors proves to be more complex and interrelated than has been accounted for as yet in the scholarly literature. The findings of the survey are relevant to system concerns related to quality management and sustainability, both of which are increasingly important in today’s competitive educational postsecondary environment.
An Empirical Study of Factors Driving the Adoption of Mobile Learning in Omani Higher Education
Mobile learning (M-learning) provides a new learning channel in which learners can access content and just in time information as required irrespective of the time and location. Even though M-learning is fast evolving in many regions of the world, research addressing the driving factors of M-learning adoption is in short supply. This article focuses on the driving factors in adoption of M-learning and the learner’s perceptions and willingness towards M-learning adoption. Technology Acceptance Model (TAM) has been shown to be a valid and powerful model in mobile and other learning technologies research. Based on Technology Acceptance Model theory, this paper analyzes the influencing factors on M-learning adoption and measure the acceptance of M-learning in Oman. The data collected from 806 participants in 17 different Omani higher education institutions using a survey questionnaire. Some factors of perceived innovative characteristics, such as ease of use, usefulness, enjoyment, suitability, social, and economic were found to have more influence on learners’ adoption of M-learning which help to facilitate and promote future empirical research. This effort is part of funded research project that investigate the development, adoption, and dissemination of M-learning in Oman.
Using the mTSES to Evaluate and Optimize mLearning Professional Development
The impact of targeted professional development activities on teachers’ perceptions of self-efficacy with mobile learning remains understudied. Power (2015a) used the Mobile Teacher’s Sense of Efficacy Scale (mTSES) survey instrument to measure the effects of a mobile learning themed professional development course on teachers’ confidence with and interest in mobile learning. The current study looks at changes in perceptions of self-efficacy amongst participants in another open course about mobile learning called Instructional Design for Mobile Learning (ID4ML), which took place from May 4 – June 6, 2015 (Power, Bartoletti & Kilgore, 2015). The purpose of this study is to verify the reliability and construct validity of the mTSES instrument developed by Power (2015a, 2015b) and Power, Cristol and Gimbert (2014), and to explore trends in self-efficacy changes amongst a more diversified participant population. This paper reports on the findings from the analysis of data collected using the mTSES tool. The findings provide useful feedback on the impacts of participating in the ID4ML course. They also provide further support for the utility of the mTSES instrument as a measure of perceptions of self-efficacy with mobile learning. These findings point to the potential utility of the mTSES as a tool for both planning and evaluating mLearning professional development training for teachers.
Effects of Group Awareness and Self-Regulation Level on Online Learning Behaviors
Group awareness can affect student online learning while self-regulation also can substantially influence student online learning. Although some studies identify that these two variables may partially determine learning behavior, few empirical studies or thorough analyses elucidate the simultaneous impact of these two variables (group awareness and self-regulation) on online learning behavior. This paper compared one online collaboration environments with GA support with one without group awareness (NA) support and further investigated how these two variables, different system types (i.e., GA and NA) and different self-regulation levels (i.e., high and low), influence learning task (i.e., assessment) participation, and peer interaction (i.e., asking for help and willing to help) using two-way analysis of variance (ANOVA). Analytical results first showed that both variables have significant interaction on assessment participation and requesting rate. GA can particularly stimulate students with high-level self-regulation to engage more learning task (assessment) participation and ask for help more, compared with students with low-level self-regulation. Second, both variables have no significant interaction on willingness to help. The GA class can enhance a student’s willingness to help regardless of his/her self-regulation level.
The Effect of Multilingual Facilitation on Active Participation in MOOCs
A new approach for overcoming the language and culture barriers to participation in Massive Open Online Courses (MOOCs) is reported. It is hypothesised that the juxtaposition of English as the language of instruction, used for interacting with course materials, and one’s preferred language as the language of participation, used for interaction with peers and facilitators, is preferable to “English only” for participation in a MOOC. The Hands-On ICT (HANDSON) MOOC included seven teams of facilitators, each catering for a different language community. Facilitators were responsible for promoting active participation and peer tutoring. Comparing language groups revealed a series of predictors of intention to learn, some of which became apparent in the first days of the MOOC already. The comparison also uncovered four critical factors that influence participation: facilitation, language of participation, group size, and a pre-existing sense of community. Especially crucial was reaching a sufficient number of active participants during the first week. We conclude that multilingual facilitation activates participation in MOOCs in various ways, and that synergy between the four aforementioned factors is critical for the formation of the learning network that supports a social dynamic of active participation. Our approach suggests future targets for the development of the multilingual and community potential of MOOCs.
The Influence of Biographical Factors on Adult Learner Self-Directedness in an Open Distance Learning Environment
This study investigated the relationship between self-directedness (as measured by the Adult Learner Self-Directedness Scale) and biographical factors such as age, race, and gender of adult learners enrolled at a South African open distance learning (O…
Developing Guidelines for Evaluating the Adaptation of Accessible Web-Based Learning Materials
E-learning is a rapidly developing form of education. One of the key characteristics of e-learning is flexibility, which enables easier access to knowledge for everyone. Information and communications technology (ICT), which is e-learning’s main component, enables alternative means of accessing the web-based learning materials that comprise the content of e-learning. However, these materials can help provide a good educational experience only if they are designed carefully, which is especially true for people that have difficulties with learning from text or those with other learning disabilities (e.g., dyslexia). The main obstacle to learning for such people is usually posed by the form in which web-based learning materials are provided. Using guidelines from relevant literature, this article provides a checklist that assesses the degree to which web-based learning materials take account of the needs of people with disabilities, especially those with dyslexia. The article focuses more on the technical aspects of web-based learning materials, as they are a crucial factor that can influence the accessibility of web-based learning materials.
The Role of Re-Appropriation in Open Design: A Case Study on How Openness in Higher Education for Industrial Design Engineering Can Trigger Global Discussions on the Theme of Urban Gardening
This case study explores the opportunities for students of Industrial Design Engineering to engage with direct and indirect stakeholders by making their design process and results into open-ended designed solutions. The reported case study involved 47 students during a two-weeks intensive course on the topic of urban gardening. Observations were collected during three distinctive phases: the co-design phase, the creation of an open design, and the sharing of these design solutions on the online platform Instructables.com.
The open sharing of local solutions triggered more global discussions, based on several types of feedback: from simple questions to reference to existing works and from suggestions to critiques. Also, some examples of re-appropriation of the designed solutions were reported. These feedbacks show the possibilities for students to have a global vision on their local solutions, confronting them with a wider and more diverse audience.
The case study shows, on the other hand, the difficulty in keeping students engaged in this global discussion, considering how after a few weeks the online discussions dropped to an almost complete silence. It is also very difficult with such online platforms to follow the re-appropriation cycles, losing the possibility of exploring the new local context where the replication/modification of the designed product occurred. The course’s focus on open design is interesting from both the design and educational points of view. It implies a deep change in the teaching approach and learning attitude of students, allowing unknown peers to take part in the design process and fostering a global discussion starting from unique and local solutions.
Design and Development of a Learning Design Virtual Internship Program
Incorporation of practical experience in learning design and technology education has long been accepted as an important step in the developmental process of future learning designers. The proliferation of adult online education has increased the numbe…
Use of Facebook by Secondary School Students at Nuku’alofa as an Indicator of E-Readiness for E-Learning in the Kingdom of Tonga
The Kingdom of Tonga is an isolated least developing country located on the northeast of New Zealand with a population of 103,252 (2011 census) and with a gross domestic product per capita of USD $2,545.20. Before educational systems in a least developing country like the Kingdom of Tonga begin employing e-learning, an assessment of the current situation of students and learning institutions may contribute to its success. Using an appropriate assessment tool is important for accurately measuring the degree of e-readiness. In this study, we administered a survey to 186 students randomly selected from five secondary schools in the Kingdom of Tonga to measure Facebook usage as an index of e-readiness for e-learning. We found that a large percentage (81%) of secondary students use Facebook, and most (74%) of these students have used Facebook for two or more years. All (100%) students use a computer to access Facebook, and most also access Facebook through mobile phones (62%) or tablets (46%). We also found correlations between duration of having a Facebook account and other indicators of e-readiness. Our findings suggest that secondary students in the Kingdom of Tonga have developed e-readiness for e-learning through their use of Facebook.
Guidelines for Transferring Residential Courses into Web
This study shared unique design experiences by examining the process of transferring residential courses to the Web, and proposed a design model for individuals who want to transfer their courses into this environment. The formative research method was used in the study, and two project teams’ processes of putting courses, which were being taught in classrooms at the time, on the Web were examined in depth to reveal and confirm the components of the design model. The participants were 13 instructional designers. In addition to the logbooks kept by the designers, individual and focus group interview techniques were employed in the data-gathering process. Two researchers analyzed the data concurrently using content analysis. The logbooks and the focus-group interviews were used for model formation, and the individual interviews to confirm the components of the model. Based on the findings from the two design cases, the experience-based e-course design model consisting of seven basic stages including forming design team, preliminary search, analysis, instructional and technical design, integration, tests, and improvements was proposed. It is considered that sustaining Web-based course design efforts within this model will enable both implementing the design process more effectively, and the Web-based course obtained at the end of the process to have higher quality.
Editorial – Volume 17, Issue Number 4
Instructors’ Perceptions of Instructor Presence in Online Learning Environments
As online learning continues to grow significantly, various efforts have been explored and implemented in order to improve the instructional experiences of students. Specifically, research indicates that how an instructor establishes his or her presence in an online environment can have important implications for the students’ overall learning experience. While instructor presence appears to be an important aspect of online learning, more research is needed to fully understand this construct. The purpose of this study was to consider online instructors’ perceptions related to presence, beliefs about actions, and the perceived impact of instructional presence. Using an explanatory multiple-case study approach, this research considered the perspectives of 13 instructors teaching in an online master’s program at a large Midwestern public university. Results indicate instructors viewed instructor presence as an important component in online courses but their reasons varied. Furthermore, the instructors discussed a number of communication strategies they used, the importance of using such strategies to connect to students, and the potential impact of these strategies on student participation and learning. Additional themes from the interview data are discussed, and implications for online teaching and learning are suggested.
Entrepreneurial Education in a Tertiary Context: A Perspective of the University of South Africa
South Africa is characterised by high unemployment levels, a low Total Early Stage Entrepreneurial Activity rate, and a high small business failure rate. Entrepreneurship and small business development is seen as a solution to end unemployment in South Africa. A study to understand how to improve small business support was conducted at the University of South Africa and has shown that alumni are unable to apply theoretical knowledge acquired from their studies. The purpose of this article is to explore the potential of the University of South Africa in becoming more entrepreneurial to address the aforementioned challenges. A desk study that reviewed literature was conducted to identify different constructs associated with an entrepreneurial university, namely entrepreneurial education, research and development, innovation, commercialisation and incubation, and stakeholders. In addition to traditional teaching methods, various alternative approaches can be used to stimulate entrepreneurial education to develop the skills of learners/students. To address these challenges a closer relationship between academia, government, and industry is paramount. It is recommended that universities incorporate entrepreneurial education in all their qualifications, expose students to on-the-job training, assist with the incubation of business ideas that students have, and provide a platform for cross-pollination of knowledge between industry, academia, and government.
A Critical Look at a Blended English Language Teacher Education Program with an Emphasis on the Practicum
The aim of the present study was to explore what types of difficulties student teachers enrolled in a Bachelor of Arts (B.A.) in English Language Teacher Education program offered in a blended format and their cooperating teachers encountered during the student teacher practicum. The participants were 21 fourth grade student teachers and 12 cooperating teachers. Semi-structured interview questions were used to collect data. The interviews were tape-recorded and then transcribed to be analyzed. According to the findings, the problems student teachers faced were grouped into four areas: assessment systems, computer–assisted communication, challenges with mentors, and psychological issues. Cooperating teachers’ problems were categorized as problems associated with the program and problems associated with the student teachers. The results of this study contribute to an increased understanding of the problems that student teachers and their cooperating teachers face during field experience at an English language teacher education program offered in a distance format. This study provides suggestions for establishing more effective mentorship during the field experience.
Analytical Insights on the Position, Challenges, and Potential for Promoting OER in ODeL Institutions in Africa
This paper shares analytical insights on the position, challenges and potential for promoting Open Educational Resources (OER) in African Open Distance and eLearning (ODeL) institutions. The researchers sought to use a participatory research approach as described by Krishnaswamy (2004), in convening a sequence of two workshops at the Open University of Tanzania (OUT) as a strategy for collecting data to obtain the aforementioned insight. The principal workshop objectives were to analyse the existing status of OER at the OUT and subsequently to share lessons learned in OER creation and production, integration and use, and hosting and dissemination. Other objectives were to discuss the rationale for an institutional OER policy and identify a suitable work-flow process for developing OER at the OUT. The workshop participants were purposively selected for their experience in co-developing OER materials with various outside organisations. The study included 28 representatives of the OUT academic units, and one facilitator from OER Africa. Research techniques used to collect data included a questionnaire, focused group discussions, presentations, and panel discussions. Results indicated that OUT staff were willing to engage with OER but had limited awareness, skills and competencies in the creation, integration and use of OER. The outcome of the study was the development of nine draft OER resolutions expressing needs that include the development of a comprehensive institutional OER policy related to existing institutional policies in order to guide, support and promote research and sustainable OER practice via holistic participation. Enabling strategies included capacity building, increased internal and external collaboration, and enhanced access to and visibility of OER via the institutional repository.
Meeting Teacher Expectations in a DL Professional Development Programme – A Case Study for Sustained Applied Competence as Programme Outcome
Meeting teacher expectations for a professional development programme (PDP) is expected to strengthen sustainable applied competence as programme outcome since teachers will be more motivated to apply the programme content in practice. A revised distance learning (DL) programme was augmented by a practical component comprising a work-integrated portfolio and audio-visual material, aimed to support the applied competence of practising teachers in the South African context. An evaluation of the way the programme measured up to teacher expectations was deemed critical for future DL programme design. A qualitative study based on an interpretivist philosophical approach collected data of teacher expectations for and of the practical component through multiple methods. Their contributions were linked with four main themes related to applied competence as identified in the literature. Participant expectations and experiences with regards to each theme were compared by means of electronic coding through ATLASti™. The findings show a strong correlation between expectations for and experiences of the way the practical component supports the elements of applied competence. Since DL is viewed as a viable and cost effective way to improve teacher competence in developing countries, these findings serve as impetus for further investigation and refining ways to support applied competence in a distance learning professional development programme (DL PDP).
Increasing Access to Higher Education Through Open and Distance Learning: Empirical Findings From Mzuzu University, Malawi
Slowly but surely, open and distance learning (ODL) programmes are being regarded as one of the most practical ways that universities across the world are increasingly adopting in order to increase access to university education. Likewise, Mzuzu University (MZUNI) set up the Centre for Open and Distance Learning (CODL) to oversee the running of these programmes in 2011. In this study, we adopted the Transactional Distance Theory (Moore, 1997) to investigate the modes of instructional systems, benefits or opportunities, and the challenges associated with the delivery of ODL programmes at MZUNI. By self-administering a questionnaire to 350 ODL students and 9 Heads of Department in the Faculty of Education whose programmes are offered through ODL, we found that instructions are mostly delivered to students through print-based instructional materials. The major benefits noted include increased access to quality higher education, affordable tuition fees, and flexibility in payment of fees. However, we established some challenges which need to be addressed by the University which include, delayed feedback of assignments and release of end of semester examination results, absence of information for courses of study, poor communication between the Centre and departments, and poor remuneration for lecturers.
Introducing AC inductive reactance with a power tool
The concept of reactance in AC electrical circuits is often non-intuitive and difficult for students
to grasp. In order to address this lack of conceptual understanding, classroom exercises compare the
predicted resistance of a power tool, based on e…
Beyond detection: nuclear physics with a webcam in an educational setting
Basic understanding of nuclear science enhances our daily-life experience in many areas, such as the
environment, medicine, electric power generation, and even politics. Yet typical school curricula do
not provide for experiments that explore the top…
Producing liquid oxygen in the classroom
A number of organisations have provided instructions on how to produce small quantities of liquid
oxygen in the classroom using liquid nitrogen and a copper condensation coil (Lister 1995 Classic
Chemistry Demonstrations (London: Royal Society of Che…
Symmetry reduction for central force problems
We give an elementary illustration of symmetry reduction for central force problems, drawing phase
portraits of the reduced dynamics as the intersection of Casimir and energy level sets in three
dimensions. These systems form a classic example of sym…
The road to matrix mechanics: II. Ladenburg’s quantum interpretation of optical dispersion
This paper reviews Ladenburg’s development of the phenomenological theory of radiative transitions
between the stationary states of an atom put forward by Einstein in 1917. The historical background
as well as the far reaching outcomes of his work …
The road to matrix mechanics: I. Classical interpretation of the anomalous optical dispersion
This paper is the first one of a series of two on the role of the optical dispersion in the
historical development of early quantum mechanics. As preparation for the successive paper on
Ladenburg’s development of the phenomenological theory of radi…
On the vector model of angular momentum
Instead of (or in addition to) the common vector diagram with cones, we propose to visualize the
peculiarities of quantum mechanical angular momentum by a completely quantized 3D model. It
spotlights the discrete eigenvalues and noncommutativity of c…
Relativistic version of the Feynman–Dyson–Hughes derivation of the Lorentz force law and Maxwell’s homogeneous equations
The canonical Poisson bracket algebra of four-dimensional relativistic mechanics is used to derive
the equation of motion for a charged particle, with the Lorentz force, and the homogeneous Maxwell
equations.
Mathematical and physical meaning of the Bell inequalities
It is shown that the Bell inequalities are closely related to the triangle inequalities involving
distance functions amongst pairs of random variables with values ##IMG##
[http://ej.iop.org/images/0143-0807/37/5/055402/ejpaa29fdieqn1.gif] {${0,1}$}…
Comment on ‘Modeling the magnetic dipole’
The model which Seleznyova et al (2016 Eur. J. Phys. 37 025203
[http://dx.doi.org/10.1088/0143-0807/37/2/025203] ) claim to consist of two oppositely charged
magnetic monopoles is in fact a model of an infinitely thin solenoid.
Reply to Comment on ‘Modelling the magnetic dipole’
The claim that the model of a pair of fictitious magnetic charges, described in our recent paper, is
that of an infinitely thin solenoid is a mistake, mainly based on misinterpretation of certain
figures therein.
Comment on ?Modeling the magnetic dipole?
The model which Seleznyova et al (2016 Eur. J. Phys. 37 025203
[http://dx.doi.org/10.1088/0143-0807/37/2/025203] ) claim to consist of two oppositely charged
magnetic monopoles is in fact a model of an infinitely thin solenoid.
Reply to Comment on ?Modelling the magnetic dipole?
The claim that the model of a pair of fictitious magnetic charges, described in our recent paper, is
that of an infinitely thin solenoid is a mistake, mainly based on misinterpretation of certain
figures therein.
Reviews
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Backwards clock in a plane mirror—the answer
In my article (Featonby 2016 Phys. Educ . 51 037002) I asked what happens when you view a backward
clock in a plane mirror? Will the motion be clockwise or anticlockwise?
Ice cubes on drinks cans—the question
In this question we are investigating thermal conduction and latent heat. What happens when ice
cubes are placed on top of drinks cans in saucers of warm water?
A simple model of a swing
The paper presents a simple model of a swing meant for undergraduates’ educational experiments. The
purpose of these experiments is the experimental study of physical principles of self-oscillations,
free, forced and parametric oscillations. The mo…
Yet another encounter with the golden ratio: balancing laminar bodies on the edge
If one removes a regular even sided polygon from a larger self-similar polygon then the excised
polygon can be balanced on the edge provided the ratio of the sides of the larger to the smaller
polygon is the golden ratio. Such an excision can be carr…
The Hubble party balloon and the expanding universe
We show that the metaphor of the inflated balloon used to describe expanding space-time according to
the Hubble law can be transformed into a simple laboratory experiment. We obtain, in terms of
measured recession speeds and distances of ink dots dra…
Measuring nonlinear oscillations using a very accurate and low-cost linear optical position transducer
An accurate linear optical displacement transducer of about 0.2 mm resolution over a range of ∼40 mm
is presented. This device consists of a stack of thin cellulose acetate strips, each strip
longitudinally slid ∼0.5 mm over the precedent one so …
The one dimensional Schrödinger equation: symmetries, solutions and Feynman propagators
A simple method to find the symmetries of the Schrödinger equation in one dimension with arbitrary
potentials is presented. The method hereby used can be of interest to students in quantum mechanics
at the undergraduate level. Several physical quest…