Building The Pedal-Powered Brain: Countdown To Race Day
These middle schoolers have been working after school for six months building their giant human-powered brain sculpture. Will their ideas hold up or come crashing down?
Đọc tiếp trên NPR
At August 17, 2016 at 05:05PM
Categoty Education
Thứ Tư, 17 tháng 8, 2016
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