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  • Nicole Jackson

    October 26, 2020 at 12:08 pm

    Christine, I like this example.

    If I can suggest:

    using base ten blocks in place of counters for the representation of such large numbers.

    using number bars for direct measurement.

    and (maybe) number lines for an indirect measurement.

    The use of the place value chart (the exterior object) to compare the two numbers is a great choice for indirect comparison.