Triangle Inequality Theorem Color by Number

In this activity, students will apply knowledge of the triangle inequality theorem to determine if the three sides given can form a triangle–as they color! Students will color problem numbers on the mandala with 2 opposing colors of their choice–a dark color if the sides given can form a triangle, and a light color if the sides given cannot form a triangle.

This no-prep activity is an excellent resource for sub plans, enrichment/reinforcement, early finishers, and extra practice with some fun. It is especially useful for end-of-year practice, spiral review, and motivated practice when students are exhausted from standardized testing or mentally “checked out” before a long break (hello summer!). Color motivates even the most challenging students and the students get a fun chance to practice their essential geometry skills. In addition, the finished products make fabulous classroom decor!