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180 Degree Protractor

Right/Acute/Obtuse

Grade 4

Created by:

Math & Movement

Estimated Activity Time:

Standard:

Concept(s):

Activity Instructions

Material: Yardsticks

Ask students to make an acute/obtuse/right angle. Have several students make varying acute and obtuse angles. Challenge a student to make the smallest acute angle, or the largest acute angle, the smallest obtuse angle, and if they can figure out what the largest measure of an obtuse angle would be.

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