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González, Gloriana; Eli, Jennifer A. – Journal of Mathematics Teacher Education, 2017
Launching a problem is critical in a problem-based lesson. We investigated teachers' perspectives on the use of a problem that was analogous to the one provided during a launch. Our goal was to identify teachers' underlying assumptions regarding what should constitute a launch as elements of the "practical rationality of mathematics…
Descriptors: Mathematics Instruction, Problem Based Learning, Problem Solving, Teaching Methods