A fun exploration for upper elementary or middle school students, from Numberphile:

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# How Long is 10! Seconds?

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7 thoughts on “How Long is 10! Seconds?”

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A fun exploration for upper elementary or middle school students, from Numberphile:

Want to help your kids learn math? Claim your free 24-page problem-solving booklet, and sign up to hear about new books, revisions, and sales or other promotions.

Thank you for sharing!

Very nice explanation. This is a topic I have seen many kids struggle with.

Very interesting! I certainly learned from your video, and that explanation will be easy for my students to understand.

Instructions are very clear and the calculator visual great!

The explanation was well done and easy for others to understand.

You are an engaging teacher. The explanation was phenomenal. My students would love it.

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