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Direct linkOlson, Travis A.; Olson, Melfried; Slovin, Hannah – National Council of Teachers of Mathematics, 2015
Do your students think they can model ratios with sets of discrete objects and combine them to show the addition of ratios? Do they believe that equivalent ratios are based on additive relationships rather than multiplicative ones? What tasks can you offer what questions can you ask to determine what your students know or don't know and move them…
Descriptors: Mathematics Instruction, Mathematical Concepts, Pedagogical Content Knowledge, Grade 6
