Hi Maria,
I found a couple of articles with some ideas regarding shadows that you may be able to use! The first describes an entire 5E lesson about light and shadows - perhaps you can use parts of what is described here as your 'Engage:'
https://common.nsta.org/resource/default.aspx?id=10.2505%2f4%2fsc12_050_02_78
I also found an article that uses a formative assessment probe to get students engaged in 'science talk.' Maybe you could use this at the beginning to check for background knowledge, or at the end of the lesson as a check for understanding:
https://common.nsta.org/resource/default.aspx?id=10.2505%2f4%2fsc12_050_02_32
If you use any of these ideas, please let me know how it goes!
Does anyone else have any strategies that could help?
-Megan
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