Classifying angles worksheets

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Compare every angle to a square corner: smaller is acute, an exact match is right, wider is obtuse, and a flat line is straight.

Just 4th grade. Print it here, or open the page for examples and teaching notes.

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  1. 4th grade Core grade

    Examples and teaching notes

    Each print is a different sheet with its own answer key. You don't need to sign up.

    Classifying angles worksheets for fourth grade cover the four types of angles: acute, right, obtuse and straight. Each problem draws two rays from a shared vertex, and your child circles the name. The habit built is comparing every opening to a square corner rather than judging by looks.

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