Lesson Plan

The Division Algorithm—Converting Decimal Division into Whole Number Division Using Mental Math

Curated and Reviewed by Lesson Planet

Make math much simpler with mental math methods. The 16th installment in a series of 21 looks at ways scholars can apply mental math to convert division problems into easier problems with the same quotient. Multiplying or dividing both dividend and divisor by the same value is the preeminent strategy for the lesson.

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CCSS: Designed
Additional Tags
Instructional Ideas
  • Assign the problem set as either classwork or homework depending on available class time
  • Have the class create a graphic organizer outlining mental math strategies
Classroom Considerations
  • Individuals should have a broad understanding of mental math from previous grades
  • Includes some scaffolding tips for struggling learners
  • Provides a suggested pacing guide to keep the class on track
  • None
Common Core