Craig Yen

@craigyen

5th Grade Teacher - #Flipclass (in math) #Edtech Fanboy #EdCamp Fanatic #NBCUESonoma #MakerFaire #EdcampSFBAY

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Architect - Music time from Austin with Tesla coils  #makerfaire

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124 days ago

Architect - Music time from Austin with Tesla coils #makerfaire

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