Benchmarks (K - 2)
A.
Describe and create plane figures: circle, rectangle, square, triangle, hexagon, trapezoid, parallelogram and rhombus, and identify them in the environment.
D.
Identify, explain and model (superposition, copying) the concept of shapes being congruent and similar.
E.
Recognize two- and three-dimensional objects from different positions.
Grade Level Indicators (Grade Prekindergarten)
1.
Match identical two- and three-dimensional objects found in the environment in play situations (e.g., 2 squares of same size, 2 stop signs).
2.
Sort and classify similar two- and three-dimensional objects in the environment and play situations (e.g., paper shapes, 2 balls of different size).
3.
Identify, name, create and describe common two-dimensional shapes in the environment and play situations (e.g., circles, triangles, rectangles, and squares).
Grade Level Indicators (Grade Kindergarten)
1.
Identify and sort two-dimensional shapes and three-dimensional objects. For example:
a. Identify and describe two-dimensional figures and three-dimensional objects from the environment using the child's own vocabulary.
b. Sort shapes and objects into groups based on student-defined categories.
c. Select all shapes or objects of one type from a group.
d. Build two-dimensional figures using paper shapes or tangrams; build simple three-dimensional objects using blocks.
Grade Level Indicators (Grade 1)
1.
Identify, compare, and sort two-dimensional shapes; i.e., square, circle, ellipse, triangle, rectangle, rhombus, trapezoid, parallelogram, pentagon, and hexagon. For example:
a. Recognize and identify triangles and rhombuses independent of position, shape or size; and
b. Describe two-dimensional shapes using attributes such as number of sides and number of vertices (corners, or angles).
2.
Create new shapes by combining or cutting apart existing shapes.
Grade Level Indicators (Grade 2)
2.
Predict what new shapes will be formed by combining or cutting apart existing shapes.
3.
Recognize two-dimensional shapes and three-dimensional objects from different positions.
4.
Identify and determine whether two-dimensional shapes are congruent (same shape and size) or similar (same shape different size) by copying or using superposition (lay one thing on top of another).