Classify Triangles Color by Number turns a key geometry skill into a picture students actually want to finish. Students sort each answer into the right group, color by the key, and a hidden picture appears. Students classify triangles by their sides and angles. Built for Grades 4–5 and aligned to 4.G.A.2, 5.G.B.4. No-prep and self-checking, it's ready for math centers, morning work, early finishers, or homework — and every download includes a print-ready PDF plus an interactive version with the answer key.
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.