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221Published 2013“...National Council of Teachers of Mathematics,...”
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222Published 2010“...National Council of Teachers of Mathematics,...”
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223Published 2011“...National Council of Teachers of Mathematics,...”
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224
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225
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226Published 1964“...National Council of Teachers of Mathematics,...”
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227
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228by Copley, Juanita V., 1951-“...National Council of Teachers of Mathematics,...”
Published 2017
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229Published 2017“...National Council of Teachers of Mathematics,...”
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230“...National Council of Teachers of Mathematics,...”
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231by Bastable, Virginia, Schifter, Deborah, Russell, Susan Jo, Harrington, Danielle, Reynolds, Marion (Geometry teacher)“...National Council of Teachers of Mathematics,...”
Published 2018
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232by Russell, Susan Jo, Schifter, Deborah, Bastable, Virginia, Konold, Cliff, Higgins, Traci L.“...National Council of Teachers of Mathematics,...”
Published 2018
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233Published 2012“...National Council of Teachers of Mathematics,...”
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234“...National Council of Teachers of Mathematics,...”
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235by Schifter, Deborah, Bastable, Virginia, Russell, Susan Jo, Monk, Stephen, Noble, Tracy“...National Council of Teachers of Mathematics,...”
Published 2018
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236
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237
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238Published 1986“...National Council of Teachers of Mathematics : National Council of Supervisors of Mathematics,...”
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239“...The National Council of Teachers of Mathematics, Inc.,...”
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240“...The National Council of Teachers of Mathematics, Inc.,...”
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