Grade 1 - Measurement and Geometry
Standard 1.MD.11 - Determine whether a two dimensional shape is open or closed.
Included Skills: Geometry
The student will a) identify, trace, describe, and sort plane figures (triangles, squares, rectangles, and circles) according to number of sides, vertices, and angles; and b) identify and describe representations of circles, squares, rectangles, and triangles in different environments, regardless of orientation, and explain reasoning.