. Grade 5, Illustrative icon

Comparing Heights of Buildings

Illustrative MathematicsVaries

The goal of this task is to compare three quantities using the notion of multiplication as scaling. Students will recognize that the Burj Khalifa is taller than the Eiffel tower and that the Eiffel Tower is shorter than the Willis Tower using the size of the given multiplicative scalars. More work is necessary, however, to compare the Willis Tower to the Burj Khalifa because these heights are only given in reference to the height of the Eiffel Tower. Students can compare these two heights either by reasoning about the size of the two given scalar multiples or using pictures as in part (b).

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