Use this worksheet as a formative assessment for your students as they study the characteristics of polygons.

Teach your students to sort triangles as acute, right, or obtuse based on their internal angle type.

Can your first graders tell the difference between a square and a cube? How about a triangle and a cone? Use this geometry assessment to gauge your students’ abilities to use attributes to sort 2-D and 3-D shapes.

Build student understanding of the defining attributes of triangles with this sorting activity. Students will cut out different shape cards and sort them into examples and non-examples of triangles.