Each student will need a protractor. The idea of this lesson is to us different types of angles to combine together in order to get a certain angle left out of the circle.
For example, two 150 degree angles placed side to side would leave 20 degrees open. Two 45 degree angles would leave 270 degrees left. Have the students explain the results in terms of acute, obtuse, and right angles.
Using Angles to Build
K - Kindergarten
1 - First Grade
2 - Second Grade
3 - Third Grade
4 - Fourth Grade
5 - Fifth Grade
The grade level links above will take you to the Sunshine State Standards math expectations. Each expectation also includes a printable student activity.
1 - First Grade
2 - Second Grade
3 - Third Grade
4 - Fourth Grade
5 - Fifth Grade
The grade level links above will take you to the Sunshine State Standards math expectations. Each expectation also includes a printable student activity.
Math Resources
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FloridaMath.com aims to provide valuable math teaching resources for instructors and parents alike. Founded by a practicing third grade math teacher, it was constructed as a place for people to come together and share math teaching ideas. Since practicing instructors contribute to this website, the math teaching resources you will find here are both relevant and applicable.
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