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2014-08-07 0.5 http://www.nctm.org/Publications/teaching-children-mathematics/2010/Vol17/Issue2/call-for-manuscripts_-technology---September-2010/ 2014-10-25 0.5 http://www.nctm.org/Publications/mathematics-teacher/1999/Vol92/Issue1/ 2014-08-07 0.5 http://www.nctm.org/Publications/teaching-children-mathematics/2010/Vol17/Issue2/ 2014-08-07 0.5 http://www.nctm.org/Publications/Mathematics-Teacher/1964/Vol1/Issue1/The-Mathematics-Teacher-index-for-volume-57_/ 2015-11-24 0.5 http://www.nctm.org/Publications/Mathematics-Teacher/1964/Vol1/Issue1/ 2015-06-13 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2006/Vol12/Issue2/ 2014-08-07 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2010/Vol16/Issue4/Mathematical-Exploration_-Similar-Triangles/ 2014-10-25 0.5 http://www.nctm.org/Publications/Mathematics-Teacher/1965/Vol1/Issue1/The-Mathematics-Teacher-index-for-volume-58_/ 2015-11-24 0.5 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2014-08-06 0.5 http://www.nctm.org/Publications/Mathematics-Teacher/1979/Vol1/Issue1/The-Mathematics-Teacher-index-for-volume-72_/ 2015-11-23 0.5 http://www.nctm.org/Publications/Mathematics-Teacher/1979/Vol1/Issue1/ 2015-06-13 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2010/Vol16/Issue2/Cartoon-Corner_-The-Book-Sale/ 2014-10-25 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2010/Vol16/Issue2/Quick-Reads_-Another-Good-Idea_-Capture-the-Flags/ 2014-10-25 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2005/Vol10/Issue7/ 2014-08-06 0.5 http://www.nctm.org/Publications/journal-for-research-in-mathematics-education/1999/Vol30/Issue2/ 2014-08-06 0.5 http://www.nctm.org/Publications/mathematics-teaching-in-middle-school/2010/Vol16/Issue2/Mathematical-Exploration_-Keeping-All-the-Trains-on-the-Tracks/ 2014-10-25 0.5 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