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Lesson Plan
Curated OER

Kernel Count!

For Teachers 2nd - 3rd
Here is an impressive and thorough lesson on estimation. Young mathematicians estimate how many kernels of popcorn can fit in a tablespoon, then how many tablespoons of kernels can fit in a baby food jar. The popcorn is then popped. All...
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Lesson Plan
Curated OER

Sports Helmets and Impact Testing of Polymers

For Teachers 5th - 9th
Students examine the importance of good quality safety gear. In this investigative instructional activity, students will tests various polymers, collect data, and analyze the data to determine which polymer is best for safety helmets....