This is aligned with the following California State Standards:
Recognize same as the object that shares all of the same attributes as other objects in a group. Recognize different as the object that shares some or none of the attributes as other objects in a group.
Match a familiar shape (e.g., square, circle, triangle, rectangle) to a congruent shape (i.e., the shape with same size and orientation), or match a familiar shape (e.g., square, circle, triangle, rectangle) to a similar shape (i.e., the shape shown in a different size but same orientation).
Describe attributes or characteristics of the shape (e.g., size, orientation, the number of sides). Compare shapes and identify attributes shared by the two shapes (e.g., a rectangle and a square each have four sides).
Recognize two shapes that are congruent with or without rotation or reflection.
Communicate understanding that two shapes are congruent if the second can be obtained from the first by a sequence of rotations, reflections, and translations. Describe a sequence of transformations that would result in one figure being superimposed precisely over the other figure.