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Desafio | Painel de aprendizado | Aritmética | Khan Academy

Behind the Design: Khan Academy Avatars | Viget #learning #dashboard #gamification #illustration #UX

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Birthday probability problem | Probability using combinatorics | Khan Academy

What happens when our behaviors and attitudes are not in sync? Cognitive Dissonance is the result of this misalignment More free lessons at: http://www.khana...

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