About This Lesson
This is a second grade Math Unit, Lesson 3 out of 15. Reasoning with Shapes and their Attributes - Right Angles. The construction of a right angle tool to explore their classroom space to find other right angles using a direct comparison method will allow the students the opportunity to develop the mathematical practice of using appropriate tools strategically. Aligned to Common Core State Standards: 2.G.1 , MP.1 , MP.3 , MP.5