Let your fourth grader play triangle detective: can she spot the acute triangles on this worksheet?

Angles come in all kinds of shapes and sizes—can you spot them all? Use this resource with your students to practice finding all the angles in 2-D shapes. Your students will then be challenged to identify right angles in two-dimensional shapes.

What do reading and math have in common? It takes geometry to find the area of the surface of a book, magazine or notebook!