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Make Math Moments Academy › Forums › Mini-Course Reflections › The Concept Holding Your Students Back › Lesson 6-3: Digging Into Thinking Of Ratios As A Multiplicative Comparison and Composed Units – Discussion › Reply To: Lesson 6-3: Digging Into Thinking Of Ratios As A Multiplicative Comparison and Composed Units – Discussion

  • Amy Johnson

    Member
    November 24, 2021 at 1:49 pm

    A rate is the answer to a division problem with units attached. For example: If I travel 120 miles in 2 hours at what rate did I travel. So how many hours in 120 miles or 120 / 2 which is 60 miles per hour. The rate is the partitive division result not the simplified equivalent ratio of 120/2 =60/1.

    So I wonder one of the definitions I have been given, I think by my textbook, is a ratio is a comparison by division. This is the inverse of multiplicative thinking. So should I not use that definition?

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