Percent of Increase and Decrease

Post the names of movies that have sequels around the room and ask questions, which the students will answer by going to stand by the name of the movie that fits best. Then work with your class to analyze revenue from each film and...

Who isn't interested in shopping for food? Set up two markets in your math class: HalfFoods and DJ's, then send the kids off to compare prices. Occasionally throw a discount into the mix! Through this experience, seventh graders practice...

The question of the year is, "How much money do I need to attend the seventh grade dance?" Considering costs of clothing, dinner, and admission, learners compute sales tax and tips to add in for a final price. This task is intended to be...

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. 

Start seventh grade off with a bang with the first chapter of an eight-part seventh-grade workbook series that asks learners to work through problems involving simple probability, percents, and rational number equivalence. 

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...

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...

In this Algebra I/Algebra II worksheet, learners solve application problems involving percents, percent error, and percent of increase or decrease.  The two page worksheet contains a combination of fourteen multiple choice and free...

The main confusion with percent change is with setting up the problem. Show your learners how to use proportions to solve for the percent change and how to organize the information correctly. The lesson uses the scale factor method to...

It's time for a markdown—or a markup! Pupils imagine that they are in charge of generating a price sheet for a retail store. Working in groups, they determine the percent increase or decrease of the prices.