Bats eat mosquitoes ... lots of mosquitoes. Students compare a bat's weight to how much he can consume in one night. They calculate how much they would need to eat to consume a comparable proportion of food.
We compare the amount that an entire bat cave would eat in one night with the tremendous load of a giant dump truck. Unbelievable!
CCSS: 6.RP.A, 7.RP.A
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