The doubles…

I made a set of images that people might like to use as models for thinking about the doubles facts.  The ideas come from the work of John Van de Walle – I just added the clip art!  Enjoy!

double 3's

the-doubles

Carole

PS – The double nines are drawn from the image of an 18-wheeler… 2 wheels on the axel of the truck (under the cab), then 4 on the next axel and 4 on the next, then 4 and 4 more on the last 2 axels…  Tricky, but apparently THAT’S what makes an 18-wheeler an 18-wheeler!

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