CK-12 Foundation
Ck 12: Algebra: Proportions With Variable in the Numerator
[Free Registration/Login may be required to access all resource tools.] Use algebra to solve proportions with the variable in the numerator.
CK-12 Foundation
Ck 12: Arithmetic: Proportions
[Free Registration/Login may be required to access all resource tools.] In this lesson students write and solve proportions. Students examine guided notes, review guided practice, watch instructional videos and attempt practice problems.
CK-12 Foundation
Ck 12: Arithmetic: Proportions
[Free Registration/Login may be required to access all resource tools.] In this lesson students recognize proportions as a statement of equivalent ratios. Students examine guided notes, review guided practice, watch instructional videos...
Khan Academy
Khan Academy: Identify Proportional Relationships
Practice telling whether or not the relationship between two quantities is proportional by analyzing word problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: 7.rp Proportionality
This lesson plan explores how to recognize and represent proportional relationships between quantities.
National Council of Teachers of Mathematics
Nctm: Figure This: Vcr
This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...
Illustrative Mathematics
Illustrative Mathematics: 6.rp, 7.rp.3 Climbing the Steps of El Castillo
A performance task in which students solve a problem involving a proportional relationship. The problem is: The temple at the top of the pyramid is approximately 24 meters above the ground, and there are 91 steps leading up to the...
Khan Academy
Khan Academy: Constant of Proportionality From Tables (With Equations)
Practice finding the constant of proportionality from tables with equations.
Khan Academy
Khan Academy: Constant of Proportionality From Equations
Practice finding the constant of proportionality in equations.
Khan Academy
Khan Academy: Interpret Constants of Proportionality
Practice interpreting constants of proportionality.
Khan Academy
Khan Academy: Interpret Constant of Proportionality in Graphs
Practice interpreting the constant of proportionality in graphs.
Khan Academy
Khan Academy: Constant of Proportionality From Tables
Practice finding the Constant of proportionality from tables.
Khan Academy
Khan Academy: Constant of Proportionality From Graphs
Practice finding constant of proportionality from graphs.
Khan Academy
Khan Academy: Writing Proportional Equations From Tables
Practice writing proportional equations from tables.
Khan Academy
Khan Academy: Identify Proportional Relationships From Graphs
Practice identifying proportional relationships from graphs.
Khan Academy
Khan Academy: Equivalent Expressions With Percent Problems
Practice equivalent expressions with percent problems.
Rice University
Rice University: Cynthia Lanius: All About Ratios
Make Texas chili as you learn about ratios in this interactive lesson. Students get immediate feedback on their responses and teachers have access to online assessment.
CK-12 Foundation
Ck 12: Geometry: Proportionality Relationships Study Guide
[Free Registration/Login may be required to access all resource tools.] This study guide looks at proportionality theorems for triangles and parallel lines intersected by transversals.
Common Core Sheets
Common Core Sheets: Expressions & Equations 8.ee.6 Worksheets
Print or create worksheets to assess students' understanding of the connections between proportional relationships, lines, and linear equations.
Common Core Sheets
Common Core Sheets: Ratios and Proportional Relationships 7.rp.2d Worksheets
Print or create worksheets or flashcards to assess students' understanding of graphs and the significance of x and y in relation to proportionality.
Alabama Learning Exchange
Alex: The Need for Speed
After viewing an introductory illustrated podcast on speed, distance, time, and velocity, learners explore distance-time graphs using interactive websites. Working in cooperative learning groups, students will investigate the motion of...
Alabama Learning Exchange
Alex: Exploring Similar Figures Using Proportions
In this lesson, students will explore the concept of similarity. Students will first simplify ratios, solve proportions using the cross product property, and use properties of proportions to solve real-world problems. Similar polygons...
Alabama Learning Exchange
Alex: Using Scale Factors: Drawing Your Body to Scale
Teachers will use this lesson plan to review and apply skills involving scale factors. Teachers will use illuminations website to review scale factor. Then students will be given instructions to draw their bodies to scale.