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  • Lavon Heath

    November 24, 2021 at 8:28 pm

    Coby’s grandma gave him $10 to go to the Merc (our convenience store).

    Coby brought her $4 as change.

    How much did he spend?

    Students can either subtract from 10 or add up from 4.

    What I love is the different structures students can use to solve this equation:

    the part/part/whole model, the number line or the balance scale. When we start solving equations, I do have my students begin with a website where they use a balance scale, but I love the idea of anchoring that first to these other models. I also am happy to know that I have a model on my Smartboard!