Explain the complex concepts of the expanding universe using the simple models of this two-part teacher demonstration and student lab. The demonstrati...
Read the funny story of two inquisitive kids and build simple models of the vehicles they encounter on their comical trip to the supermarket with thei...
Read the funny story of two inquisitive kids, Ty and Karlie, and build simple, non-motorized models of the robots they construct and fix during their ...
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