Bell, A. W. (1976). The learning of general mathematical strategies: A developmental study of process attainments in mathematics, including the construction and investigation of a process-oriented curriculum for the first secondary year. Univ.
Chicago-Zitierstil (17. Ausg.)Bell, Alan William. The Learning of General Mathematical Strategies: A Developmental Study of Process Attainments in Mathematics, Including the Construction and Investigation of a Process-oriented Curriculum for the First Secondary Year. Nottingham: Univ, 1976.
MLA-Zitierstil (9. Ausg.)Bell, Alan William. The Learning of General Mathematical Strategies: A Developmental Study of Process Attainments in Mathematics, Including the Construction and Investigation of a Process-oriented Curriculum for the First Secondary Year. Univ, 1976.