Stanley Erlwanger
Publications
Erlwanger, S. H. (1973). Benny's conception of rules and answers in IPI mathematics. Journal of Children’s Mathematical Behavior, 1(2), 7–26.
Erlwanger, S. H. (1973). Benny's conception of rules and answers in IPI mathematics. Journal of Children’s Mathematical Behavior, 1(2), 7–26.