- p. 8Shape Families Share Attributes.
- p. 9From a Family to Its Members.
- p. 10Test a Family Claim.
- p. 12Sort the Craft Cutouts.
- p. 14Mixed Review.
The standard
Determine, through exploration and investigation, that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.
Element 5.GSR.8.2 of Georgia's K-12 Mathematics Standards (2021, effective SY2023-24), in the Geometric & Spatial Reasoning strand. It sits under standard 5.GSR.8: Examine properties of polygons and rectangular prisms, classify polygons by their properties, and discover volume of right rectangular prisms.
What students practice
Classify polygons by sides and angles, use inclusive family diagrams and explain inherited attributes. Symmetry, congruence and complete worked keys.