{"id":296606,"date":"2016-10-10T02:00:00","date_gmt":"2016-10-09T23:00:00","guid":{"rendered":"http:\/\/www.fyysika.ee\/?guid=b74aa36284e2576aa47406d6a32a03c7"},"modified":"2016-10-10T02:00:00","modified_gmt":"2016-10-09T23:00:00","slug":"can-students-draw-lines-of-best-fit","status":"publish","type":"post","link":"https:\/\/www.fyysika.ee\/?p=296606","title":{"rendered":"Can students draw lines of best fit?"},"content":{"rendered":"<p>Students are often called upon to draw lines of best fit by hand, without the process being well<br \/>\ndefined. For example, the line might be linear, but with no information as to the size or direction<br \/>\nof any error bars, or the line might be curved but in an unfamiliar fashion. A survey of students<br \/>\nshowed good agreement amongst the sample as to the best straight line for noisy data, although it<br \/>\ndiffered from the expected value. When asked to draw an exponential curve (as for a half-life<br \/>\nexperiment) there was a significant difference between results when a point was included or omitted<br \/>\non the y -axis. This may inform what we ask students to do in experimental work.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Students are often called upon to draw lines of best fit by hand, without the process being well<br \/>\ndefined. For example, the line might be linear, but with no information as to the size or direction<br \/>\nof any error bars, or the line might be curved but in&#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-296606","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\/296606","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=296606"}],"version-history":[{"count":0,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=\/wp\/v2\/posts\/296606\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=296606"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=296606"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fyysika.ee\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=296606"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}