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Fennell, Francis; Karp, Karen – Journal of Learning Disabilities, 2017
The intent of this commentary is to identify elements of fraction sense and note how the research studies provided in this special issue, in related but somewhat different ways, validate the importance of such understandings. Proficiency with fractions serves as a prerequisite for student success in higher level mathematics, as well as serving as…
Descriptors: Fractions, Number Concepts, Mathematics Instruction, Mathematical Concepts
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Matthews, Percival G.; Hubbard, Edward M. – Journal of Learning Disabilities, 2017
The three target articles presented in this special issue converged on an emerging theme: the importance of spatial proportional reasoning. They suggest that the ability to map between symbolic fractions (like 1/5) and nonsymbolic, spatial representations of their sizes or "magnitudes" may be especially important for building robust…
Descriptors: Mathematical Concepts, Fractions, Mathematics Instruction, Symbols (Mathematics)