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This lesson unit is intended to help teachers assess how well students are able to interpret percent increase and decrease, and in particular, to identify and help students who have the following difficulties: translating between percents, decimals, and fractions; representing percent increase and decrease as multiplication; and recognizing the relationship between increases and decreases.
Ratios and Proportions
Lower Primary, Upper Primary, Middle School, High School
Kindergarten, Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11, Grade 12
Material Type:
Assessment, Lesson Plan
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
Creative Commons Attribution Non-Commercial No Derivatives
Media Format:
Downloadable docs, Text/HTML


Lehua HIDOE on Aug 24, 04:31pm

This is a lesson and assessment tool. It has many teacher resources like a detailed lesson plan, ppt for students, and materials to do in class activity. It is addressing CCSS 7.RP.3. Students have to combine the card sets like a puzzle to make accurate statements about percent of increase and decrease.



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Average Score (3 Points Possible)
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Quality of Explanation of the Subject Matter3 (1 user)
Utility of Materials Designed to Support Teaching3 (1 user)
Quality of AssessmentsN/A
Quality of Technological InteractivityN/A
Quality of Instructional and Practice ExercisesN/A
Opportunities for Deeper LearningN/A

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