# Shapes and Designs

*This unit has been moved from grade 6 to grade 7*

### Topics

Polygonal shapes, angles, rotations, measurement of angles, regular polygons, drawing triangles, quadrilaterals.

### Overview of Changes

*Minor Changes*: repositioning and streamlining of the 6th grade unit.

### Detailed Description of Changes

Since most of the mathematical goals in the *Shapes and Designs* unit now appear as 7^{th} grade CCSS objectives, this unit was moved to the start of grade 7 where it provides a sound background for *Stretching and Shrinking* and *Filling and Wrapping* in 7^{th} grade and *Looking for Pythagoras* and *Butterflies, Pinwheels, and Wallpaper* in 8^{th} grade.

Except for some streamlining of the mathematical content and repositioning of a few problems, the content of the proposed CMP3 unit is similar to the current CMP2 unit, with the addition of two problems to address CCSSM objectives.

New Investigation | Changes in CMP2 Investigations |
---|---|

Investigation 1 The Family of Polygons |
Investigation 1 of CMP 3 is Problem 1.1 and Problems 2.1-2.4 from CMP2. |

Investigation 2 Designing Polygons: The Angle Connection |
Investigation 2 is Problems 3.2-3.5 and 1.4 from CMP2. |

Investigation 3 Designing Triangles and Quadrilaterals |
Investigation 3 is Problems 4.1-4.5 and 3.1 from CMP2. |