Triangles have three sides and are measured by interior angles and belong to categories based on that. The acute triangle is defined, illustrated, and explained. There are many exercises to help students remember the attributes of acute triangles as distinguishable from other triangles. Students will use an interactive protractor for practice to correctly measure interior angles to distinguish acute triangles from others. This resource is narrated in Navajo.
This resource can be found on the MathActive website.