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Make Math Moments Academy › Forums › Mini-Course Reflections › The Concept Holding Your Students Back › Lesson 4-3: Relating Addition and Subtraction – Discussion › Reply To: Lesson 4-3: Relating Addition and Subtraction – Discussion

  • Nicole Jackson

    Member
    November 13, 2020 at 10:54 am

    Sarah has some chocolates. She gave 6 chocolates to Maya. Now she has 8 chocolates left. How many chocolates did Sarah have to start with?

    Active Separation; Start Unknown

    Students can access this problem by way of:

    an algebraic equation using addition

    a number line; counting forward

    a mathematical model using “?” to represent the sum of the two sets and two smaller sets below to represent the amount Maya has (6) and the amount Sarah has now (8)

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