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Robot Rover: Angles as Parts of a Circle

Grade 4 angle practice with a robot theme: measure turns as fractions of a circle and use the idea that a one-degree angle is 1/360 of a circle.

Grade 4MathInteractive · Printable

Aligned to4.MD.C.5.a

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 4
Subject: Math
Question types: Fill in the blank, Multiple choice, Matching, Circle the answer, Sorting, Short answer

About this worksheet

What students practice

Students explain that a one-degree angle turns through 1/360 of a circle.
Students find an angle's measure from the fraction of a circle it turns through.
Students find the fraction of a circle an angle turns through from its measure in degrees.

How to use

Read the angle facts box together first. Students can trace each turn with a finger around the dashed circle before they answer the picture questions.

Curriculum

Common Core standard covered

4.MD.C.5.a

Understand an angle as measured against a circle, where a one-degree angle turns 1/360 of the circle.

Preview

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Name Date

Robot Rover: Angles as Parts of a Circle

Measure a robot's turns as fractions of a 360° circle.

One Degree Is 1/360 of a Circle

Rover is a robot that turns in place at the center of a circle mat. Use the angle facts to answer each question.

Angle facts
A full turn around a circle is 360°.
A one-degree angle (1°) turns through 1/360 of a circle.
An angle that turns through 25/360 of a circle measures 25°.

Rover beeps each time it turns through a one-degree angle. How many times does Rover beep in one full turn?

times

Rover turns through 15/360 of the circle. How many degrees does the angle measure?

degrees

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