| Title | Journal | Journal Categories | Citations | Publication Date |
|---|---|---|---|---|
| The Development of the Idea of Mathematical Proof: A 5-Year Case Study | Journal for Research in Mathematics Education |
| 95 | 1996 |
| Teachers building on children's thinking | 1992 | |||
| Using videotapes to study the construction of mathematical knowledge of individual children working in groups | 1992 | |||
| Making room for mathematicians in the philosophy of mathematics | 1986 | |||
| A study of pupils' proof–explanations in mathematical situations | 1976 |