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  • Robin Bergen

    April 18, 2021 at 8:01 am

    The rate is what unlocks the proportional relationship. I like that. Scaling in tandem allows the students to scale up and down but it is the rate that is the glue that holds the relationship together. It allows students to start talking about what is important about the problem and once we find the relationship we can find that rate, which will lead to the constant of proportionality which will eventually leads to the equation.