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Math Playground for Teachers
Friendly aliens have lost their way and you are in charge of the rescue mission.
Your job is to set the angle on the rescue launcher.
Can you estimate the angles within 5 degrees?
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Alien Angles - Learning Connections
Essential Skills
Estimation - visualize angle sizes

Common Core Connection for 4th Grade
Recognize angles as geometric shapes formed wherever 2 rays share a common endpoint.
Understand concepts of angle measurement.
Measure angles in whole-number degrees using a protractor.
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