Geometry

3rd Grade students will be able to:

• Explain that shapes in different categories may share attributes and that the shared attributes can define a larger category. 

  • Example 1: A rhombus and a rectangle are both quadrilaterals since they both have exactly four sides. 

  • Example 2: A triangle and a pentagon are both polygons since they are both multi-sided plane figures. 

• Recognize rhombi, rectangles, and squares as examples of quadrilaterals and/or 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. 

  • Example 1: Partition a shape into 4 parts with equal areas.

  • Example 2: Describe the area of each of 8 equal parts as 1/8 of the area of the shape.