6.G.3

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  • #3041
    mitzell
    Participant

    How are 6th graders to calculate distance in the coordinate plane without having operations of integers until 7th grade?

    #3059
    Bill McCallum
    Keymaster

    Why do they need integer operations? Students can see that the distance between $(-1,3)$ and $(2,3)$ is 3 without knowing how to subtract $-1$ from $2$. For example, they could plot the points on the plane and count the units to get the distance. This is in fact good preparation for integer subtraction. I think maybe you are thinking about the formula for distance, which would indeed require integer subtraction. But you don’t need to use the formula.

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