Percent Problems Lesson: Find the Whole from a Part, Grades 6-7

18 seats are filled, and that is 30% of the seats in a hall. How many seats does the hall have? This lesson teaches students to work back to 100%: know a part and its percent, then find 10% or 1% and scale up to the whole.

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 and a 25-minute version
• Scaffolded notes, 1 page, fill-in to match the slides
• Practice worksheet, 2 pages: 17 items
• Exit ticket, 3 questions, two to a sheet
• Unit Check, 1 page, 10 items, 1 point each, with a score box
• Answer key, 3 pages, with the steps, the filled-in percent bars and tables, and the Unit Check answers
• Print-all PDF, 10 pages, the day's lesson plan, notes, practice, exit ticket, Unit Check and answer key in one file

Answer key included

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