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  • Marion Mulgrew

    July 15, 2022 at 2:30 pm

    I’m thinking about how to use this for multiplying and dividing with negative numbers. If we use the owing money model, it doesn’t work for neg x neg. IF I use colored items with different colors for neg and positive, it sort of works, but feels very contrived and less intuitive immediately. I’m hoping you have some suggestions.

    For the concepts relating to adding and subtracting including negative numbers, Maybe a picture of people in line to purchase a movie ticket. Negative numbers are those without tickets yet. Positive numbers are those who have goin into the theater or passed the counter (0 point). I usually use money or + and – markers, but this may be more interesting.