Grade 4
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Geometry
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Measurement & Data
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Number & Operations: Base Ten
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Number & Operations: Fractions
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Operations & Algebraic Thinking
Arizona Math Standard: 4.MD.A.3
Apply the area and perimeter formulas for rectangles in mathematical problems and problems in real-world contexts including problems with unknown side lengths.
Same Perimeter, Different Area For Rectangles
Can two rectangles have the same perimeter but… different areas!?
Math Curiosity: The Coloring Problem
No video gets me more email from students! How few colors can you use to color in any map so that no two, neighboring regions are the same color?
How Many Students Can Fit On The Playground?
So… just how many kids could we cram onto the playground?