This resource combines several OER resources in a way to help build deeper understanding. Students start with exploring what they already know about ratios and proportions. Next they review (or learn for the first time, depending on background) with Khan Academy some videos on the topics. They are able to do some hands on exploring with sorting ratio cards by digging into relationships. Students can then work on a three act math problem, and dig into the entire process of writing and solving a proportion problem. They end by evaluating "student work" on the topic, explaining the steps and what went wrong in the problems.

Many math classes have students with varying backgrounds and levels of understanding. These activities have multiple entry points, giving more opportunities for learning. This is designed to give students the opportunities to dig in deeply to build conceptual understanding as well as procedural fluency.
Middle School, Adult Education
Material Type:
Activity/Lab, Assessment, Homework/Assignment
Date Added:
Creative Commons Attribution Non-Commercial Creative Commons Attribution Non-Commercial
Media Format:
Graphics/Photos, Text/HTML


Laura Gerlach on Jun 06, 05:30pm

The paint problem is very good because it is real life. Always being real life into math!

Esther Udoh
on Jun 05, 03:04pm Evaluation

Quality of Explanation of the Subject Matter: Superior (3)

Information provided will help students connect to Ratios and Proportions.

Laura Gerlach on Jun 05, 09:10am

I particularly liked the clear explanation at the beginning so you know what this resource includes.

Marcus Hall on Jun 02, 09:56pm

Love the organization! Big fan of KhanAcademy and their practice options. I would add some extra guidance on the Direct Instruction part of this lesson. You reference two videos and immediately move into formative assessment. Perhaps add a check for understanding activity before administering the assessment.


No Alignments yet.


Achieve OER

Average Score (3 Points Possible)
Degree of AlignmentN/A
Quality of Explanation of the Subject Matter3 (2 users)
Utility of Materials Designed to Support Teaching2 (2 users)
Quality of Assessments2 (2 users)
Quality of Technological Interactivity3 (2 users)
Quality of Instructional and Practice Exercises2 (2 users)
Opportunities for Deeper Learning3 (2 users)

Tags (3)