# Student Work

Student Work from various CMP Units is provided to stimulate conversations about the mathematical teaching and learning embedded in individual Problems. To add more examples of student work on CMP problems, please email cmp@math.msu.edu. For more information about current research on student work carried out by the CMP Staff, visit the Student Work in Curriculum Materials Research Project.

### Let's Be Rational

Student Work for Let's Be Rational Problem 3.3
These student strategies (from Let’s Be Rational Problem 3.3) are a teacher’s documentation of student thinking over many years using CMP. Knowing the ways that students may approach the problems can be helpful to teachers in a few ways.

### Shapes and Designs

Problem 2.2
Shapes and Designs Problem 2.2 asks students to make an important generalization about the angle sum property for any polygon. Students are introduced to the strategies of three students and asked to make sense of the strategies for finding the angle sums of polygons.
Problem 2.3
The photos show students working during the Explore (from Shapes and Designs Problem 2.3) to create posters that show regular polygons that do and do not tessellate.

### Comparing and Scaling

Problem 1.2: Making Juice
The “Orange Juice” Problem in the Grade 7 Unit: Comparing and Scaling has become a classic CMP problem. Iterations of the problem have been in all three versions of CMP. While working with the problem, students generate many interesting strategies for determining the “most orangey” tasting juice from four different recipes.