Sun, lamp or flashlight?
Make a giant sun and other light sources with cut outs, then hold up everyday objects and ask, "Does this make light?" Kids sort them into two piles: makes light and does not. Watch the debate when you hold up a mirror!
Why it works: kids understand an idea best when they touch it, then draw it, then write it, the order the U.S. Department of Education recommends for elementary math.
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