This packet contains 8 Common Core geometry activities and sorts that require students to identify characteristics of figures, apply knowledge of geometric vocabulary, construct their own definitions, and analyze the properties and characteristics of figures in order to identify similarities and differences. Students must make observations and justify their thinking.
Activities meet Common Core math standards for grades 3-5:
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.
Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, of the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.
Understand that attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.
Classify two-dimensional figures in a hierarchy based on properties.