# Angle Clapper

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Free on Plus | 12 pages (PDF)|Grades: 3 - 7

Angles and all their different names can be confusing, but these Angle Clappers make angles fun.

These Angle Clappers take a bit of constructing, but they’re well worth it when they are done. Use these angle clappers to interactively show the different angles and their properties.

The angle symbols are separate from the angle clapper, but all you need to do is cut them out and put a draw pin through the clapper board and the clapper. You then have a moving arm that represents the angle written on the board. The clapper arms have been labeled so you can easily match up the angles.

#### Common Core Curriculum alignment

• CCSS.MATH.CONTENT.4.MD.C.5

Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand concepts of angle measurement:

• CCSS.MATH.CONTENT.4.MD.C.5.A

An angle is measured with reference to a circle with its center at the common endpoint of the rays, by considering the fraction of the circular arc between the points where the two rays intersect the circle. An angle that turns through 1/360 of a cir...

• CCSS.MATH.CONTENT.4.MD.C.5.B

An angle that turns through n one-degree angles is said to have an angle measure of n degrees.

• CCSS.MATH.CONTENT.4.MD.C.6

Measure angles in whole-number degrees using a protractor. Sketch angles of specified measure.

• CCSS.MATH.CONTENT.4.MD.C.7

Recognize angle measure as additive. When an angle is decomposed into non-overlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in ...

• CCSS.MATH.CONTENT.4.G.A.1

Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.

• CCSS.MATH.CONTENT.5.G.B.3

Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category. For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. #### Find more resources for these topics

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