|Directed by Clorinda Warny|
|Canada, 1971 (animation / children's, 4 minutes, colour, French)|
|Photo © National Film Board of Canada|
"An elementary school film on multiplication based on the theories of Professor Zoltan Dienes."
-- National Film Board of Canada (source)
|Film Credits (partial):|
|Produced by:||RenÚ Jodoin|
|Production Company:||Office national du film du Canada / National Film Board of Canada|