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Deihl, Steve; Markinson, Mara P. – Journal of Mathematics Education at Teachers College, 2019
High school students often ask questions about the nature of infinity. When contemplating what the "largest number" is, or discussing the speed of light, students bring their own ideas about infinity and asymptotes into the conversation. These are popular ideas, but formal ideas about the nature of mathematical sets, or "set…
Descriptors: High School Students, Mathematical Concepts, Algebra, Secondary School Mathematics