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Lesson Plan
Illustrative Mathematics

Chess Club

For Teachers 6th - 8th Standards
When the membership in a chess club changes, it is your mathematicians' job to find out how many boys and girls are attending and the percent change from last year. The activity provides a great compound problem finding the different...
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Lesson Plan
Illustrative Mathematics

The Price of Bread

For Teachers 6th - 8th Standards
As part of an initiative to strengthen our young adults' financial understanding, this problem explores the cost of bread and minimum wage since the 1930s. Learners are asked to find the percent increase from each year and compare it...
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Lesson Plan
Illustrative Mathematics

Shirt Sale

For Teachers 6th - 7th Standards
Everyone loves a good deal, and your mathematician's job is to calculate the original price when given the discount. A different type of problem than the traditional "find the percent change" has your learners working backwards to...
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Lesson Plan
Mathematics Assessment Project

Increasing and Decreasing Quantities by a Percent

For Teachers 7th Standards
As part of a study of percent and percent change, learners first complete an assessment task with several percent change problems. They then complete an activity using cards to create a diagram expressing percent increases and decreases...
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Lesson Plan
Willow Tree

Percent of Change

For Teachers 7th - 10th Standards
Your car decreases in value from $20,000 to $17,000. What percent of the value have you lost? Pupils answer word problems by determining the percent of change. 
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Worksheet
Central New Mexico Community College

Percent Word Problems

For Students 5th - 8th Standards
Take young mathematicians' understanding of percents into the real world with this series of word problems. Involving a variety of contexts from calculating scores on math tests and savings account interest, to determining sale prices...
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Lesson Plan
EngageNY

Percent Increase and Decrease

For Teachers 7th Standards
Increase the percent of pupils that are fluent in solving change problems with an activity that asks class members to look at problems that involve either increases or decreases and to express the change in terms of the percent of the...
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Lesson Plan
EngageNY

Problem Solving When the Percent Changes

For Teachers 7th Standards
Use more than one whole to solve percent problems. The ninth installment in a 20-part series has pupils work percent problems in which they must determine two wholes. Individuals use double number lines to represent and solve the...
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Lesson Plan
Illustrative Mathematics

Comparing Years

For Teachers 6th - 7th Standards
Who knew that the Egyptian, Julian, and Gregorian year were different lengths? Your mathematicians will! They will have to calculate the difference between the years in seconds and find the percent change. Using dimensional analysis,...
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Lesson Plan
Illustrative Mathematics

Selling Computers

For Teachers 6th - 8th Standards
A quick activity to test your learners' knowledge of percent increase. When an electronic store needs a 30% increase in computer sales, your mathematicians must calculate how many computers they need to sell next month.
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Lesson Plan
Curated OER

Changing Planet: Black Carbon - a Dusty Situation

For Teachers 6th - 9th
Introduce your young meteorologists to black carbon produced by the burning of fossil fuels by showing the video, "Changing Planet: Black Carbon." Viewers discover that deposition of this carbon on polar ice impacts the absorption of...
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Interactive
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NASA

Resolving 2-Plane Traffic Conflicts by Changing Speed—Problem Set E

For Students 5th - 9th Standards
What do you do to change arrival times of airplanes when a different route is not available? The fifth interactive in a series of six presents problems where pupils must find solutions to conflicts of safety rules. They must decide how...
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Lesson Plan
EngageNY

Tax, Commissions, Fees, and Other Real-World Percent Problems

For Teachers 7th Standards
Pupils work several real-world problems that use percents in the 11th portion of a 20-part series. The problems contain percents involved with taxes, commissions, discounts, tips, fees, and interest. Scholars use the equations formed for...
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Lesson Plan
Willow Tree

Percents

For Students 7th - 10th Standards
We see percents everywhere! Building a solid understanding of their meaning is important to future mathematics, but also as citizens. Young scholars practice rewriting decimals, percents, and fractions. They also determine percents of a...
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Interactive
CK-12 Foundation

Percent of a Number: Rock Climbing

For Students 6th - 8th
What percent of the 100 ft. rock has Marta climbed? Young mathematicians find the percent of number (the rock height) by moving the climber up and down the rock.
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Worksheet
Math Worksheets Land

Percent Error and Percent Increase - Matching Worksheet

For Students 6th - 8th Standards
Calculating percent change is a handy tool to understand sales, discounts, and other numerical changes we come across. Here, worksheet practices percent change and percent error with a variety of problems to let your learners see how it...
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Worksheet
Math Worksheets Land

Percent Error and Percent Increase - Guided Lesson

For Students 6th - 8th Standards
When prices and numbers change, can you calculate by how much? Here is a worksheet that introduces the idea of percent change and percent error to calculator how much change the information goes through. Use the worked-out solutions to...
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Lesson Plan
Curated OER

introducing the Concept: Using Ratios and Percents

For Teachers 4th - 6th
Young scholars convert decimals and fractions to percents. In this introductory percents lesson, learners work with equivalent fractions and learn to draw ratios. They recognize how to change a fraction to a percent.
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Assessment
EngageNY

End-of-Module Assessment Task: Grade 7 Mathematics Module 4

For Students 7th Standards
Asses the class to determine their knowledge of proportional relationships involving percents. Class members work through the nine-question assessment with a variety of percent problems. The multi-step problems involve simple interest,...
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Lesson Plan
EngageNY

Changing Scales

For Teachers 7th Standards
Pupils determine scale factors from one figure to another and the scale factor in the reverse direction. Scholars compute the percent changes between three figures. 
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Interactive
Scholastic

Study Jams! Making Change

For Students 4th - 6th Standards
This dreamy resource has little ones computing the change on the purchase of an ice cream cone. Mia describes each step in two methods: subtraction of decimals and counting up from the sale price.
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Lesson Plan
Math Worksheets Land

Percent Error and Percent Increase - Step-by-Step Lesson

For Students 6th - 8th Standards
Half a foot difference may not mean much, but converting that to an 8% change puts it into perspective for young minds. The lesson discusses the idea of converting information into percents to discover errors made and how much it...
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Interactive
CK-12 Foundation

Percent of Change: The Pizza Conundrum

For Students 6th - 8th Standards
Nine questions—multiple choice and fill in the blank—challenge mathematicians to solve money word problems. Looking closely at prices, scholars use a formula to identify percent increases and decreases based on an original and new price....
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Lesson Plan
EngageNY

Fluency with Percents

For Teachers 7th Standards
Pupils build confidence working with percents as they work several types of percent problems to increase their fluency. The resource contains two sets of problems specifically designed to build efficiency in finding solutions of basic...

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