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.
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