Dec 7, 2019, 1:15 PM
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Bruce Williams edited The developmental continuum for teaching addition.
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Dec 7, 2019, 1:15 PM
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Bruce Williams edited The developmental continuum for teaching addition.
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Dec 7, 2019, 1:10 PM
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Bruce Williams edited The developmental continuum for teaching addition.
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Dec 7, 2019, 1:04 PM
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Bruce Williams attached 10.png to The developmental continuum for teaching addition.
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Dec 7, 2019, 1:04 PM
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Bruce Williams updated 9.png
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Dec 7, 2019, 1:04 PM
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Bruce Williams attached 8.png to The developmental continuum for teaching addition.
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Bruce Williams attached 7.png to The developmental continuum for teaching addition.
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Bruce Williams attached 6.png to The developmental continuum for teaching addition.
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Bruce Williams attached 5.png to The developmental continuum for teaching addition.
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Bruce Williams attached 4.png to The developmental continuum for teaching addition.
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Bruce Williams attached 3.png to The developmental continuum for teaching addition.
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Dec 7, 2019, 1:03 PM
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Bruce Williams attached 2.png to The developmental continuum for teaching addition.
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Dec 7, 2019, 1:02 PM
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Bruce Williams attached 1.png to The developmental continuum for teaching addition.
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Dec 7, 2019, 1:02 PM
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Bruce Williams attached 9.png to The developmental continuum for teaching addition.
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Dec 7, 2019, 12:55 PM
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Bruce Williams edited The developmental continuum for teaching addition.
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Dec 7, 2019, 12:50 PM
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Bruce Williams edited Bruce Williams.
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Dec 7, 2019, 12:48 PM
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Bruce Williams created The developmental continuum for teaching addition.
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Dec 7, 2019, 12:46 PM
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Bruce Williams edited Bruce Williams.
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May 22, 2016, 10:34 PM
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Bruce Williams edited Bruce Williams.
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May 22, 2016, 10:31 PM
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Bruce Williams edited Bruce Williams.
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Bruce Williams edited Bruce Williams.
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Jul 20, 2015, 2:53 PM
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Bruce Williams edited Bruce Williams.
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Jun 17, 2015, 8:05 PM
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Bruce Williams edited Bruce Williams.
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Jun 17, 2015, 8:04 PM
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Bruce Williams edited Bruce Williams.
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Jun 8, 2015, 6:31 PM
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Bruce Williams edited Bruce Williams.
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