Current time:0:00Total duration:10:13

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# Common Core Standards: Negative numbers

Sal talks with Bill McCallum, a lead author of the Common Core Standards, about the standards for negative numbers.

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# Common Core Standards: Negative numbers

Current time:0:00Total duration:10:13

0 energy points

Sal talks with Bill McCallum, a lead author of the Common Core Standards, about the standards for negative numbers.