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Array Chats

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The Goal of #ArrayChat

A way to look at multiplication

A number sense routine to analyze images and math in the real world

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Expectations

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Validate others strategies

Change “That’s Easy” to “I Have a Strategy I can Use”

Change Rushing to get an answer to analyzing multiple views and appreciating differences

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Possible Questions for the Smaller Arrays

  • How many are there? (No counting)
  • Can you see it a different way?
  • What equation would match the way that you/your partner thought about it?
  • Is there another equation that would match what you (or a classmate) described?
  • How many would be there if you could see all of them?

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Possible Questions for the Larger Arrays

  • How many do you think are there and why?
  • What would be an estimate that’s too high?
  • What would be an estimate that’s too low?
  • What different ways could we group them (and what equations would match each group)?

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Each “ball” is made up of 20 plastic bags

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https://twitter.com/mathinyourfeet/status/437363611657183232/photo/1

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