Curated OER
Compare 2-D Shapes
Second graders examine the attributes of two-dimensional shapes. In this geometry lesson, 2nd graders play a game in order to identify two-dimensional shapes and to name them.
Curated OER
Sizing Up Shapes
First graders explore geometric shapes. For this math lesson, 1st graders sort shapes into groups and discuss the characteristics of the shapes. Students build geometric shapes using toothpicks and marshmallows.