Curated OER
Volume of a Stair-Step
Sixth graders calculate the volume of a stair-step. In this volume lesson, 6th graders apply their knowledge of the formula for finding volume. They practice their use of math language since this lesson is presented in a Japanese...
Curated OER
Marshmallow Geometry
In this three-dimensional shapes geometry lesson, learners identify geometric solids and name their properties. They define "face," "edge," and "vertex," and construct geometric solids using marshmallows as vertices and toothpicks as edges.