Grade 7 Unit Resources
Preparing to Teach
 Unit Preparation
 Planning an Investigation
 Discourse and Collaboration: Teacher Strategies
 Discourse and Collaboration: Supporting Students
 Student Work and Notebooks
 Using Technology
 CMP Lesson Structure  Launch, Explore, Summary
 Assessments in CMP
 Meeting Students' Needs, General Support
71 Shapes and Designs
 Focus Questions
 Scope and Sequence
 What's Problem 1.1 All About?
 Student Work from Shapes and Designs, Problem 2.2: Angle Sums of Any Polygon
 View Student Work

This student work can serve as a guide for planning, teaching, assessing, and reflecting on the mathematics of this Problem. The work can be downloaded for teachers to examine during planning time, for use in a collaborative meeting, or for use in professional development activities.
Also, this student work can be used with students as an extension of the thinking already presented in Problem 2.2. This strategy can deepen students understanding of polygons and their shapes. It is interesting to note that the different examples of student thinking presented in Problem 2.2 may have prompted one student to explore the possibilities of other strategies.
 Student Work from Shapes and Designs, Problem 2.3: The Bees Do It
 View Student Work

A CMP teacher shared photos of students working during the Explore of the lesson. Students were testing to see which regular polygons tessellate. They were recording their results on chart paper Using the results, the students and teacher discussed how angle measures in the polygons can explain the tiling properties.
 Students in the photos were exploring these questions from the teacher:
 Which regular polygons will tile a flat surface with no gaps or overlaps?
 Which polygons will not do so?
 Why do some shapes tile and others do not?
Purpose
The student work photos provide a glimpse into the CMP classroom during the Explore phase of the lesson. In particular, the photos show the active role of the student in the process constructing their knowledge around welldefined challenges.
 Using Realize/Dash Activities  Bee Dance Activity, Tessellations, Virtual Polystrips, Quadrilateral Game
 Why do bees build hexagonal honeycombs?  External video about the hidden mathematical rule behind one of nature's most perfect shapes
 Teacher and Classroom Connection Videos
72 Accentuate the Negative
 Focus Questions
 Scope and Sequence
 Using Realize/Dash Activities  Integer Product Game
 JeopardyLike Game Show for CMP Classrooms
 Teacher and Classroom Connection Videos
 Problem 1.4 Summary  In the Chips
 Problem 2.1 Launch  Extending Addition to Rational Numbers
 Problem 2.1 Explore  Extending Addition to Rational Numbers
 Problem 2.1 Summary  Extending Addition to Rational Numbers
 Problem 2.4 Launch  Fact Families
 Problem 4.2 Launch  The Distributive Property
 Meeting Students' Needs
73 Stretching and Shrinking
 Focus Questions
 Scope and Sequence
 Using Realize/Dash Activities  Mug Wumps
 Arc of Learning
 Teacher and Classroom Connection Videos
74 Comparing and Scaling
 Focus Questions
 Scope and Sequence
 Student Work from Comparing & Scaling, Problem 1.2: Making Juice
 Student Work from Comparing & Scaling, Problem 2.1: Sharing Pizza
 Shawn Towle demonstrates the CMP Activity Paper Pool
 Using Realize/Dash Activities  Paper Pool
 Arc of Learning
 Teacher and Classroom Connection Videos
75 Moving Straight Ahead
 Focus Questions
 Scope and Sequence
 Using Realize/Dash Activities  Climbing Monkeys
 Arc of Learning
 Problem 2.1: Henri and Emile's Race
 View Student Work

The examples of student work provide a glimpse into the strategies that CMP students use to construct answers. In particular, the examples can help teachers anticipate the strategies that their own students may use to answer the question of how long to make Henri and Emile’s Race.
Students use many strategies when trying to decide how long the race should be for Henri and Emile in the Moving Straight Ahead, Problem 2.1: Henri and Emile’s Race. Here we provide examples of student work produced by students in various CMP classrooms. The strategies include students guessing and checking, using a table, making a graph, using visual diagrams, and using the distance between the two boys to reason about the question.
Some of the work is in students’ writing and other work is recreated from actual CMP students. Student answers to the Problem are not included.
 Problem 2.1: Linear Relationships (video)
 Teacher and Classroom Connection Videos
76 What Do You Expect?
 Focus Questions
 Scope and Sequence
 Teacher and Classroom Connection Videos
77 Filling and Wrapping
 Focus Questions
 Scope and Sequence
 Shawn Towle demonstrates the CMP Activity Pouring and Filling
 Using Realize/Dash Activities Virtual Box, Areas and Perimeters of Shapes and Images, Virtual Cylinder, Pouring and Filling
 Teacher and Classroom Connection Videos