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Download full textNorton, Stephen J. – International Group for the Psychology of Mathematics Education, 2005
The development of proportional reasoning has long been recognised as a central but problematic aspect of mathematics learning. In a Year 6 teaching intervention the part/whole notion of fractions was distinguished from the part: part notion of ratio, and the "between" and "within" relationships in ratio were emphasised.…
Descriptors: Mathematics Education, Mathematical Concepts, Number Concepts, Arithmetic
