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Make Math Moments Academy Forums Mini-Course Reflections 2019 MMM Virtual Summit Sarah Schaefer: Integer Operations – Discussions

• # Sarah Schaefer: Integer Operations – Discussions

Posted by on December 6, 2019 at 2:27 am

What was your big take away from this particular lesson?

What is something you are still wondering?

3 Members · 2 Replies
• 2 Replies
• ### Rosemary Twohig

Member
December 10, 2019 at 4:57 am

I really loved these ideas. They took what I already do to the next level. I canâ€™t wait to use them. On a side noteâ€¦the music was distracting. If I could mute the music it would be helpful.

• ### Michelle Kovesi

Member
April 21, 2020 at 2:06 pm

This was an excellent video! The key take-away for me was that we need to help students use patterns and reasoning to determine things that are hard to model.

I loved how Sarah used the strategy of reasoning with patterns to develop the concept of multiplying two negative numbers. I’ve used a similar sequence to teach exponents. We know that:

2^3 = 8
2^2 = 4
2^1 = 2

Then, noticing the dividing by 2 pattern going down the lines, we can reason that 2^0 should be 1, and 2^-1 should be 1/2…

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