PhET
Molecule Shapes
The shape of a molecule is determined by the arrangement of atoms around the central atom and lone pairs of electrons. Scholars build models of molecules using single, double, and triple bonds. They can then see real molecules bond...
Curated OER
Congruent Polygons: Copying Stretchy Shapes
Third graders investigate congruent polygons through dance. In this congruency lesson plan, 3rd graders do the "brain dance" as a warm up. They review polygon names by singing "The Polygon Chant," before mirroring congruent shapes with a...
Curated OER
Design-A-Room Project (Part 3 of 3)
Young scholars culminate a unit on measurement with a focus on area and perimeter. They design a floor plan of their dream room on graph paper showing the proper area and perimeter. They plan the budget for their room and make a 3-D...