Stuck with triangle proofs? Take a 180° and provide learners with a guided learning exercise that tests their knowledge with triangle inequalities. The questions require different types of proofs that range in levels of difficulty. 

Augment your math curriculum with posters detailing several concepts important to second grade math. Each poster features one math term from geometry, measurement, probability and statistics, computation and estimation, numbers and...

How do you build a polygon from an inequality? An engaging lesson challenges pupils to do just that. Building from the previous lesson in this series, learners write systems of inequalities to model rectangles, triangles, and even...