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Shopaholic Carla’s just found the cutest pair of shoes! And – even better – she did the math and found out they’re FREE!… or are they? Does 40% off plus an additional 60% off really mean these shoes are free?

Math Mess is a local public television program presented by WVIZ and PBS Ideastream.

Related Lessons

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    Lesson 205

    Shapes That Are the Same

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    Warm up with a Mystery Math Mistake to build "one more." Hunt for different shapes within a picture. Describe and use attributes of shapes to tell if two shapes are the same. Match everyday objects with their shape.

  • Math Mights - 1st Grade

    Lesson 205

    3 Addends

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    Warm up with a Mystery Math Mistake to decompose teen numbers. Use a double 10-frame to represent adding three single-digit numbers. Play a game with 10-frame cards to add numbers. The one with the greatest number wins!

  • Math Mights - 2nd Grade

    Lesson 205

    Measure with Inches

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    Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Measure the length of objects and sides of shapes in inches. Notice and Wonder to compare centimeters and inches. Find objects that are about 1 inch long.