Title | Journal | Journal Categories | Citations | Publication Date |
---|---|---|---|---|
Plenary paper delivered at the 32nd Annual Meeting of the International Group for the Psychology of Mathematics Education | 2008 | |||
Plenary paper delivered at the 32nd Annual Meeting of the International Group for the Psychology of Mathematics Education | 2005 | |||
Number concepts and operations in the middle grades | 1988 | |||
Handbook of international research in mathematics education | 2016 | |||
Algebra in the early grades | 2008 |