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An angle that turns through n one-degree angles is said to have an angle measure of n degrees.
Back to Measurement & Data (4.MD)
How to use a Protractor (5:34)
Measuring & Drawing Angles w/Protractor (4:06)
How to Measure Angles? (3:00)
Khan Academy Angles & Fractional Parts of a Circle (7:37)
Degrees as Fractional Parts of a Circle (6:58)
Alien Angles (Math Playground)
Rocket Angles (Math Playground)
Angles in Circles Practice (Khan Academy)
Manipulative: Shapes & Protractor (Math Learning Center)
Measuring Angles (Math Playground)
Angles Alien Attack (Maths Frame)
Bow and Angle (ABCYa)