Grade 1
It is essential that these standards be addressed in contexts
that promote problem solving, reasoning, communication, making connections, and
designing and analyzing representations.
Problem Solving Links
1.3 Geometry: Compose and decompose two- and
three-dimensional geometric shapes.
1.3.1 Describe geometric attributes of shapes (e.g., round, corners, sides) to determine how they
are alike and different.
1.3.2
Recognize and create shapes that are congruent or have symmetry.
1.3.3 Compose and decompose shapes (e.g., cut a square into two right triangles and put two
cubes together to make a rectangular prism), thus building an understanding of part-whole
relationships as well as the properties of the original and composite shapes.
1.3.4
Recognize shapes when viewed from different perspectives and orientations.