Angle Degrees

Angle Degrees
You can find this storyboard in the following articles and resources:
Introduction to Angles Lesson Plans

Introducing Angles

Lesson Plans by Anna Warfield

The basics of angles are so important for students to understand! Angles play a critical role in geometry and are the foundation for trigonometry and geometry. Students should eventually be able to read a protractor, but even just understanding if an angle is big (obtuse or reflex) or small (acute) makes a difference in elementary geometry. The following activities are a great way to provide visual aids to students and help them understand how different angles affect polygons.




Introducing Angles

Storyboard Description

Angle Degrees

Storyboard Text

  • 98
  • la
  • I hear "degrees" all the time. What are degrees when we are talking about angles?
  • 6
  • EXAMPLE
  • 45
  • EXAMPLE
  • o
  • Degrees are a unit of measurement, like inches or pounds.
  • 1
  • o
  • Degrees measure rotation or turn of an angle in reference to a full circle.
  • 
  • A sailor looks straight ahead through a spyglass at another ship. There is no turn, so he is looking at an angle of 0 degrees.
  • The factors of 360 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, and 360
  • Then he gets distracted by a bird and looks up. His head has turned upwards. Now he is looking at an angle of 45 degrees.
  • 180
  • 72
  • o
  • o
  • 120
  • 60
  • o
  • o
  • 90
  • 45
  • o
  • o
  • In a full circle, there are 360 degrees. Each degree is 1/360 of a full circle.
  • Image Attributions:Thermometer (https://www.flickr.com/photos/jz909/1451373852/) - jetsandzeppelins - License: Attribution (http://creativecommons.org/licenses/by/2.0/)100414-N-0696M-087 (https://www.flickr.com/photos/thejointstaff/4522012433/) - Chairman of the Joint Chiefs of Staff - License: Attribution (http://creativecommons.org/licenses/by/2.0/)
  • Some think that 360 was chosen for the number of degrees in a circle because it is close to the number of days in a year.
  • 360 also has many factors, so a circle can be divided into equal parts easily.
  • Each circle has been divided into equal parts. The angle measurement of each part is outside each circle.

Image Attributions

Over 20 Million Storyboards Created
Storyboard That Family