Understand that shapes in different categories (e.g., rhombuses, rectangles, and others) may share attributes (e.g., having four sides), and that the shared attributes can define a larger category (e.g., quadrilaterals). Recognize rhombuses, rectangles, and squares as examples of quadrilaterals, and draw examples of quadrilaterals that do not belong to any of these subcategories.
Partition shapes into parts with equal areas. Express the area of each part as a unit fraction of the whole. For example, partition a shape into 4 parts with equal area, and describe the area of each part as 1/4 of the area of the shape.
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Khan - Multiplying Monomials Work through a problem on monomials to polynomials (1:05) |
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Khan - Numerator and Denominator of a Fraction Work through a fraction problem with Sal using geometry (2:31) |
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Khan - Proper and Improper Fractions Work through a problem on proper fractions (1:41) |
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