Percent Increase and Decrease Lesson: Find the Percent Change, Grades 7-8

A class library had 40 books and now has 50. What is the percent change? Percent change is the change divided by the original amount, written as a percent. This lesson teaches students to find the change, divide by the original, and say whether it is an increase or a decrease.

What's inside

• 18 slides, with speaker notes on all 18
• Lesson plan, 2 pages: standards, materials, objective, a teacher-guided sequence keyed to slide numbers, a "Watch For" note, a 25-minute version and a note on using the deck in Google Slides
• Scaffolded notes, 1 page, fill-in to match the slides
• Practice worksheet, 2 pages: 17 items
• Exit ticket, 3 questions, two to a sheet
• Answer key, 2 pages, with the steps worked out
• Print-all PDF, 8 pages, the day's lesson plan, notes, practice, exit ticket and answer key in one file

Answer key included

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