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6 November 2012

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  • 08:5508:55, 30 October 2012 diff hist +1,180 N Mortensen MathCreated page with 'Mortensen Math was developed by Jerry Mortensen (V.J. Mortensen) while working as a Montessori teacher. ==Sources== ===Mortensen Math Direct=== As far as I can tell, this is the…'

29 October 2012

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