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1 Charles, K, "Young children’s partitioning strategies" 43 (43): 191-221, 2000
2 Middleton, J. A, "The emergence of quotient understandings in a fifth-grade classroom: A classroom teaching experiment" 2001
3 Piaget, J, "The child’s conception of geometry" Basic Books 1960
4 Lamon, S. J, "Teaching fractions and ratios for understanding" Lawrence Erlbaum Associates 1999
5 Steffe, L. P, "Teaching experiment methodology: Underlying principles and essential elements, In Handbook of research design in mathematics and science education" Erlbaum 267-307, 2000
6 Wearne, D, "Results from the seventh mathematics assessment of the National Assessment of Educational Progress" National Council of Teachers of Mathematics 2000
7 Behr, M. J, "Rational-number concepts, In Acquisition of mathematics concepts and processes" Academic Press 91-126, 1983
8 Lamon, S. J, "Rational numbers and proportional reasoning, In The second handbook of research on mathematics teaching and learning" Information Age Publishing 629-667, 2007
9 Pothier, Y, "Partitioning: The emergence of rational number ideas in young children" 14 (14): 307-317, 1983
10 Kieren, T, "On the mathematical, cognitive, and instructional foundations of rational numbers, In Number and measurement" Ohio State University 104-144, 1976
11 Vergnaud, G, "Multiplicative structures, In Acquisition of mathematics concepts and processes" Academic Press 127-174, 1983
12 Hiebert, J, "Mathematical, cognitive, and instructional analysis of decimal fractions, In Analysis of arithmetic for mathematics teaching" Lawence Erlbaum Associates 283-322, 1992
13 Ohlsson, S, "Mathematical meaning and applicational meaning in the semantics of fractions and related concepts, In Number concepts and operations in the middle grades" National Council of Teachers of Mathematics 53-92, 1988
14 Sinicrope, R, "Interpretations of fraction division, In Making sense of fractions, ratios, and proportions: 2002 yearbook" National Council of Teachers of Mathematics 153-161, 2002
15 Streefland, L, "Fractions in realistic mathematics education: a paradigm of developmental research" Kluwer Academic Publishers 1991
16 Huberman, A. M, "Data management and analysis methods, In Handbook of qualitative research" sage publications 428-444, 1994
17 Carpenter, T. P, "Children’s mathematics" National Council of Teachers of Mathematics 1999
18 Toluk, Z, "Children’s conceptualizations of the quotient subconstruct of rational numbers" Arizona State University 1999