young creative teacher explains for students the principle quadcopter work |
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| navigate by keyword : advanced aerial air assembling assistant attractive boys caucasian children class constructing construction creative cshoolchildren drone education electronics engineering experiment flying future girls innovation invention kids korean laboratory lesson machine mechanism playroom playtime process professional programming pupils quadcopter robot school schoolchildren science smart specialist students studying teacher technology teenagers |
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| Young creative teacher explains for students the principle of quadcopter work. Science and education. Selective focus. |
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