Like many parents, Sal Khan has bought Itsy Bitsy Spider, Park Math and other educational apps created by Duck Duck Moose, a San Mateo, Calif.-based startup. But the Khan Academy founder just scored ...
Sequoia-backed kids educational startup Duck Duck Moose is heading to Khan Academy, to add preschool learning to the non-profit’s digital education offerings. The startup’s 21 mobile apps aimed at ...
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