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內(nèi)容概要

Earth Day is on the way, and Ryan, Luke, and Carly have a plan. If they manage to collect and recycle 5,000 aluminum cans, they can make enough money to buy some beautiful flowers for nearby Gilroy Park. 
CAN they do it? 
Counting the cans gives Ryan, Luke, and Carly -- along with readers -- a lesson in place value. And facts about recycling throughout the story will help readers understand how important it is to take care of the earth.

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