| Ron Ofir - Vol. 11 Num. 2 (1991) | ||
| Historical happenings in the mathematical classroom | 21-23 | |
| Ron Ofir - Vol. 15 Num. 2 (1995) | ||
| The case for and against casting out nines | 23-28 | |
for the learning of mathematics
Search Table of Contents
Search Table of Contents
| Ron Ofir - Vol. 11 Num. 2 (1991) | ||
| Historical happenings in the mathematical classroom | 21-23 | |
| Ron Ofir - Vol. 15 Num. 2 (1995) | ||
| The case for and against casting out nines | 23-28 | |