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CCSS.Math.Content.4.MD.C.5 Recognize Angles...

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 circle is called a "one-degree angle," and can be used to measure angles.

 

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.

 
Authors: National Governors Association Center for Best Practices, Council of Chief State School Officers

Title: CCSS.Math.Content.4.MD.C.5 Recognize Angles As Geometric Shapes That Are Formed Wherever... Measurement and Data - 4th Grade Mathematics Common Core State Standards

Publisher: National Governors Association Center for Best Practices, Council of Chief State School Officers, Washington D.C.

Copyright Date: 2010

(Page last edited 03/04/2014)

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  5. How to Measure Angles - Online lesson introducing angles and measurement.
  6. Learning about Angles - Use this online tool to demonstrate angles and measurements.
  7. Line Plot Lesson Plan - Excellent lesson with interactives and engaging activities for students.
  8. Measuring Angles - Practice lining up and reading a protractor while you measure a set of angles in a fun learning activity

 

 

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.
 

  

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