Maryland College and Career-Ready Standards
MD.MA.1.G. Geometry (G)
1.G.A. Reason with shapes and their attributes.
1.G.A.1. Additional Standard: Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size); build and draw shapes to possess defining attributes.
1.G.A.1.1. Ability to sort shapes (e.g., attribute blocks, polygon figures) by shape, number of sides, size or number of angles.
1.G.A.1.2. Ability to use geoboards, toothpicks, straws, paper and pencil, computer games to build shapes that possess the defining attributes.
1.G.A.1.3. Ability to explain how two shapes are alike or how they are different from each other.