Order of Operations Lesson: Write, Evaluate & Find the Error, Grades 5-7

The last day of the unit pulls it together. Students write expressions from words ("add 8 and 7, then multiply by 2"), put numbers in for letters, work the cube formulas V = s³ and A = 6s², and hunt for the mistake in worked solutions.

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-the-blank to match the slides
• Practice worksheet, 2 pages: 18 practice items (12 write-and-evaluate, 3 formulas in context, 3 find-the-error or explain)
• Exit ticket, 3 questions, two per sheet
• Unit Check, 1 page, 10 items, with its own key in the answer key
• Answer key, 3 pages, with every step shown
• Print-all PDF, 10 pages: the lesson plan, every student page and the answer key in one file

Answer key included

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