{"id":477195,"date":"2017-09-15T02:00:00","date_gmt":"2017-09-14T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=44ab4662643aa90680db7544f8f6d6d8"},"modified":"2017-09-15T02:00:00","modified_gmt":"2017-09-14T23:00:00","slug":"which-bulb-is-brighter-it-depends-on-connection-strategies-for-illuminating-electrical-conceptsusing-light-bulbs","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=477195","title":{"rendered":"Which bulb is brighter? It depends on connection! Strategies for illuminating electrical concepts\r\nusing light bulbs"},"content":{"rendered":"<p>In this paper, we examined teachers\u2019 understanding of electrical concepts such as power, current and<br \/>\npotential difference based on how these concepts were applied to understand the relative brightness<br \/>\nseen in bulbs of different wattage under different connections\u2014series or parallel. From the<br \/>\nresponses of teachers to a concept question, we identified common lines of reasoning and the<br \/>\nassociated conceptual difficulties. To support the explanation of the concept question, we set up<br \/>\nrelevant circuits and made measurements of the circuits. We discuss the temperature dependence of<br \/>\nthe resistance of the light bulb which although critical for in depth understanding of the relative<br \/>\nbrightness, was often omitted in the teacher responses. Lastly, we share insights and strategies to<br \/>\nelicit and confront students&#8217; thinking and to help them resolve, extend and apply their thinking<br \/>\nwith regard to the related electrical concepts using various light bulb activities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this paper, we examined teachers\u2019 understanding of electrical concepts such as power, current and<br \/>\npotential difference based on how these concepts were applied to understand the relative brightness<br \/>\nseen in bulbs of different wattage under differ&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[178],"tags":[],"class_list":{"0":"post-477195","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rss-fuusikaharidus","7":"entry"},"_links":{"self":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/477195","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=477195"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/477195\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=477195"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=477195"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=477195"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}