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Home : 2008 : Oct : 25

    2nd grade teacher
    By P'cola teach

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    The set-up:

    Draw the tens/ones frame, call it a building with elevators.
    Draw a smaller box above each column, call it the air conditioning unit.
    The elevator starts at the top floor of the ones, and goes down.
    How many people get off on the first floor?
    If more than started, then you have to go next door and borrow 10 people. (Cross out and regroup in the ac boxes.)
    How many people are left when you get to the basement?

    Repeat for as many digits as you're teaching.

    The rhyme:

    If there's more on the floor,
    go next door;
    borrow 10 more,
    then subtract.

    My class loved this as a rap, whole group and singing it out solo.

    View the original thread this idea was posted on

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