Number Talks are short (10ish minutes), exercises aimed at building number sense. Number sense is the ability to play with numbers meaning students can visualize problem solving, perform calculations quickly, and are flexible in their mathematical strategy.
I'm looking for the students to solve the equations, 3 different ways (if possible), with the use of the strategies we have discussed in class.
18+18
20+20
18+19
18+17
Please take a look at the following videos which will talk about measuring using centimeters (cm), as well as what a meter (m) is, and how to measure using a meter.
https://www.youtube.com/watch?v=tuBLuIW1U70
https://www.youtube.com/watch?v=-PEdvVgevNE
https://www.youtube.com/watch?v=-PEdvVgevNE
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