Unit 2, Lesson 2# Explain decisions about classifications of triangles into categories using variants and non-examples. Identify shapes as triangles.

EngageNY 60 min(s)Support for English Language Learners

In this lesson, students begin to classify three-sided shapes by identifying them as examples of a triangle. First, students make a connection between the name and attributes of a triangle. Then they work with various examples and non-examples of triangles, sorting and classifying different shapes as examples of a triangle or not a triangle. Finally, students create triangles with a geoboard and drawings.