| Adding Fractions |
1962 |
John Colburn Associates Inc |
|
16mm |
|
sound |
| Dividing Fractions |
1962 |
John Colburn Associates Inc |
|
16mm |
|
sound |
| Factors And Primes |
1962 |
John Colburn Associates Inc |
|
16mm |
|
sound |
| Multiplying Fractions |
1962 |
John Colburn Associates Inc |
|
16mm |
|
sound |
| Subtracting Fractions |
1962 |
John Colburn Associates : Released by Colburn Film Distributors |
|
16mm |
|
sound |