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"Eliciting Specific Difficulties with Light and Shadow." Teachers' Domain. 14 Aug. 2012. Web. 20 May. 2013. <http://www.teachersdomain.org/resource/tdpd12.pd.sci.pbieliciting/>.

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Eliciting Specific Difficulties with Light and Shadow

Resource for Grades 9-12

| Citation

Eliciting Specific Difficulties with Light and Shadow

Media Type:
Video

Running Time: 7m 05s
Size: 21.1 MB

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Source: WGBH Educational Foundation

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Related Resources:

Assessing Student Learning about Light
(Video)

Questioning Strategies with Reflection and Absorption
(Video)

In this video from Physics by Inquiry, teachers in a professional development workshop elicit, confront, and resolve ideas about how light rays behave. After the teachers predict what they'd see on a screen when light from different sources passes through a triangular opening in a mask, they discuss and compare the results of their experiment with their predictions. An instructor then describes instructional strategies to help students overcome incorrect ideas.

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Discussion Questions

You may find it useful to watch this video with a group of your colleagues and then discuss it together.

List some examples from the video that demonstrate teachers' prior knowledge?
What is the purpose of making predictions before an experiment?
Do you agree with the statement, "When an instructor approaches a table, the most important thing to do is to listen to what the teachers have done and what they are saying"? Why or why not?