## 3rd Grade Videos - Reason with shapes and their attributes.

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.

Screenshot Name / Description Flag? Rating
Khan - Multiplying Monomials
Work through a problem on monomials to polynomials (1:05)
Khan - Numerator and Denominator of a Fraction
Work through a fraction problem with Sal using geometry (2:31)
Khan - Proper and Improper Fractions
Work through a problem on proper fractions (1:41)