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Errors concept 5 unit3 geometry solids, polyhedrons

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Carol B
Redmond, WA
9/15/2022
Acivity 2 states "Tell her we call solids polyhedrons "
Spheres, cylinders, cones are solids but not polyhedrons!

also in activity 3 : making solids, the child is asked to "color and then make polyhedrons"
The problem is among them are a cone and a cylinder!

I'm surprised by these errors and worried as I just bought MBTP curriculum for next levels.
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Karen B
Morrisville, NC
9/15/2022
Thanks for letting us know about those references. We clarified the polyhedron distinction by including "flat faces" in the definition in Activity 2 and changing "polyhedrons" to "solid shapes" or "shapes" in Activity 3. - Karen Brown, Moving Beyond the Page