Sharpen your logic, time, and angle recognition skills while working on this challenge. The solution is available to double check your results. (Hint: Use the "90 degree" right angle button on the clock to check if something is a right angle.)

Concepts

clocks, hours, minutes, right angles, time intervals, time

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Additional Tags

90 degree angle, how to tell time, measures of time, time keeping, time skills, nrich

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Classroom Considerations

• Knovation Readability Score: 3 (1 low difficulty, 5 high difficulty)

Common Core

3.MD.A.1