Lesson 2 Attributes of Triangles and Quadrilaterals
Let’s sort shapes into more specific categories.
Warm-up True or False: Multiples of Ten
Decide if each statement is true or false. Be prepared to explain your reasoning.
Activity 1 Card Sort: Triangles
Sort the triangles into categories. Record your categories and be prepared to explain how you sorted the shapes.
Activity 2 Card Sort: Quadrilaterals
Sort the quadrilaterals into categories. Record your categories and be prepared to explain how you sorted the shapes.
Practice Problem
Problem 1
Which triangles have one right angle?
Which triangles have two sides that are the same length?