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Why good ideas get trapped in the valley of death— and how to rescue them
lesson duration 05:10
751,129 views
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lesson duration 05:03
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Just add water: The garden insect that can turn into a plague
lesson duration 05:46
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What it takes to be racially literate - Priya Vulchi and Winona Guo
lesson duration 12:23
139,866 views
434,852 views
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