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Math 7 Unit 7

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Math 7 Unit 7 - Illustrative Mathematics Online Resources


Grade 7 Illustrative Mathematics – Unit 7: Angles, Triangles, and Prisms

Download PDF of Student Edition

Download PDF of Student Practice Work (Homework)

Unit Summary for Parents – PDF File

Lesson Topic

IM Lesson

Khan Academy Support Videos

Khan Academy Online Practice

Class Notes

Homework Help

Lesson 1 – Relationships of Angles

Lesson 1

Angles: Introduction

Name angles


7.7.1 Morgan

Lesson 2 – Adjacent Angles

Lesson 2

Complementary & supplementary angles

Complementary and supplementary angles (visual)


Complementary and supplementary angles (no visual)


7.7.2 Morgan

Lesson 3 – Nonadjacent Angles

Lesson 3

Vertical angles

Identifying supplementary, complementary, and vertical angles


Vertical angles


Finding missing angles


Finding angle measures between intersecting lines


7.7.3 Morgan

Lesson 4 – Solving for Unknown Angles

Lesson 4




7.7.4 Morgan

Lesson 5 – Using Equations to Solve for Unknown Angles

Lesson 5

Equation practice with complementary angles


Equation practice with supplementary angles

Create equations to solve for missing angles


Unknown angle problems (with algebra)


Quiz 1


7.7.5 Morgan

Lesson 6 – Building Polygons (Part 1)

Lesson 6




7.7.6 Morgan

Lesson 7 – Building Polygons (Part 2)

Lesson 7

Construct a triangle with constraints


Triangle inequality theorem

Triangle side length rules


7.7.7 Morgan

Lesson 8 – Triangles with 3 Common Measures

Lesson 8




7.7.8 Morgan

Lesson 9 – Drawing Triangles (Part 1)

Lesson 9




7.7.9 Morgan

Lesson 10 – Drawing Triangles (Part 2)

Lesson 10

Construct a right isosceles triangle



7.7.10 Morgan

Lesson 11 – Slicing Solids

Lesson 11

Slicing a rectangular pyramid

Cross sections of 3D objects (basic)


7.7.11 Morgan

Lesson 12 – Volume of Right Prisms

Lesson 12

Volume of triangular prism and cube



7.7.12 Morgan

Lesson 13 – Decomposing Bases for Area

Lesson 13




7.7.13 Morgan

Lesson 14 – Surface Area of Right Prisms

Lesson 14




7.7.14 Morgan

Lesson 15 – Distinguishing Volume and Surface Area

Lesson 15


Volume and surface area word problems


Quiz 2


7.7.15 Morgan

Lesson 16 – Applying Volume and Surface Area

Lesson 16




7.7.16 Morgan

Lesson 17 – Building Prisms

Lesson 17




Unit 7 Review



Khan Academy Unit 7 Practice Test



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