A protactor is a tool used to measure the number of degrees (sometimes represented as °) in an angle. The higher the degree, the more open the angle is.
Watch the following video to learn how to use a protactor to measure angles. Then try measuring some angles you can find at home or in our school!
How Do I Measure An Angle Using a Protractor? 4th Grade Math
Visit this interactive link to see how to use the protactor in depth and play the game in the second link to test your learning:
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