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Kilhamn, Cecilia – Research in Mathematics Education, 2018
Mathematically speaking, a "difference" is the result of a subtraction. However, when the number domain is extended from natural numbers to integers, the separation of the magnitude of a number from its value creates "different differences," where the connection to subtraction is no longer straightforward. Based on…
Descriptors: Arithmetic, Addition, Subtraction, Mathematics Instruction
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Molander, Bengt-Olov; Hallden, Ola; Lindahl, Camilla – International Journal of Educational Research, 2007
Ambiguity in group discussions as a resource for communication is studied. How students, aged 13-15 years, elaborate on the concept energy through dialogue is described. Group interviews were conducted with 15 hearing and 20 deaf students. Three probes were used to initiate discussions on different meanings of energy. The results show that the…
Descriptors: Figurative Language, Deafness, Energy, Group Discussion