Grade 7 Math Lessons

Students learn about proportional relationships, probability, the angles of triangles, and more. Many of these lessons come from our complete, standards-aligned math program, Amplify Desmos Math.

Grades: 7th Grade

• Scale Drawings

  Students explore scale drawings and scaled copies. They describe how scaling affects lengths, angles, and areas in scaled copies, and create and compare scaled copies.

• Scaling Robots
• Scaling Machines
• Make It Scale
• Scale Factor Challenges
• Tiles
• Will It Fit?

• Introducing Proportional Relationships

  Students explore equivalent ratios, reciprocal relationships, and what a proportional relationship looks like graphically.

• Paint
• Two and Two
• DinoPops
• Gallon Challenge

• Measuring Circles

  Students estimate and calculate circumference and explore the relationship between circumference and area to derive a formula for the area of a circle. They’ll apply that formula to solve problems involving areas of circles as well as complex shapes.

• Measuring Around
• Why Pi?
• Area Challenges

• Proportional Relationships and Percentages

  Students apply what they have learned about proportional relationships to solve problems involving percent change, and practice writing and using equations of proportional relationships.

• Back in My Day
• Mosaics
• More and Less
• All the Equations
• 100%
• Percent Machines

• Operations with Positive and Negative Numbers

  Students develop models to add and subtract integers and rational numbers, and then make sense of multiplying positive and negative integers.

• Floats and Anchors
• More Floats and Anchors
• Draw Your Own
• Integer Puzzles

• Expressions, Equations, and Inequalities

  Students learn how to solve equations of the form px + q = r and p(x + q) = r in and out of context. They also rewrite equivalent expressions using fewer terms by adding, expanding, and factoring, and solve inequalities with positive and negative numbers.

• Keeping It True
• Collect the Squares
• Budgeting
• I Saw the Signs
• Unbalanced Hangers
• Shira the Sheep
• Write Them and Solve Them

• Angles, Triangles, and Prisms

  In this unit, students solve real-life and mathematical problems involving angle measures, volume, and surface area. They explore complementary and supplementary angles, determine missing angles measures, and reason about the characteristics of segment lengths.

• Friendly Angles
• Missing Measures
• Can You Build It?

• Probability and Sampling

  Students compare the probability of unknown events and compare the results of repeated experiments to the probability, as well as explore the advantages and disadvantages of using samples to answer questions.

• How Likely?
• How Likely? (Digital Companion)
• Prob-bear-bilities
• Is It Fair?
• Crab Island

• Boost Personalized Learning and Intervention

  Differentiate instruction for your students and make math accessible with targeted small group intervention and personalized practice!

• Grade 7: Personalized Learning and Intervention

• Amplify Classroom Favorites

  Explore these other free math lessons and activities, including favorites from Desmos Classroom! Copy and edit to customize these and make them your own.

• Batty Dilation
• Central Park
• Chance Experiments
• Click Battle
• Fall Hanger Diagrams
• Marcellus the Giant
• Pool Border Problem
• Pounds of Pumpkins
• The Running Game