Curated OER
Obtuse Angles
Third graders recognize and identify geometric shapes, work with manipulatives to reinforce understanding, and create polygons with various angles to display their knowledge of the different types of angles.
Curated OER
How Far Can a Frog Jump?
Fourth graders are introduced to how to take measurements in the metric system. After defining new vocabulary, they read a story by Mark Twain about jumping frogs. In groups, they simulate a frog jumping contest in which they made...