2, Lesson 13, Unit 4, Grade 4, EngageNY icon
Fluency Activity


Lesson 13. Unit 4. Grade 4 EngageNY

EngageNY3 min(s)

This Fluency Activity is a part of the Lesson 13, Unit 4, Grade 4. In this lesson, students discover attributes of triangles, e.g., 3 sides, 3 angles, use side length and angle measure to classify triangles, e.g., acute triangle or isosceles triangle, and use their understanding of these attributes to define triangle. This fluency activity reviews terms learned in Lesson 12.

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