You are using an outdated browser and it's not supported. Please upgrade your browser to improve your experience.

lesson 2
1 hour

Angles: Equal To, Greater, Or Less Than 90 Degrees


Description

Objective:  Use right angles to determine whether angles are equal to, greater than, or less than right angles.  Draw right, obtuse, and acute angles.

In Lesson 2, students create right angles through a paper-folding activity and identify right angles in their environment by comparison with the right angles they have made. They also draw acute, right, and obtuse angles. This represents students’ first experience with angle comparison and the idea that one angle’s measure can be greater (obtuse) or less (acute) than that of a right angle.

Downloads

There may be cases when our downloadable resources contain hyperlinks to other websites. These hyperlinks lead to websites published or operated by third parties. UnboundEd and EngageNY are not responsible for the content, availability, or privacy policies of these websites.

Prerequisites

Tags

Credits

From EngageNY.org of the New York State Education Department. Grade 4 Mathematics Module 4, Topic A, Lesson 2. Available from engageny.org/resource/grade-4-mathematics-module-4-topic-lesson-2; accessed 2015-05-29.
Copyright © 2015 Great Minds. UnboundEd is not affiliated with the copyright holder of this work.
Download