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  • X = Ballantine, Francis A.
A comparative study of the relative readability of original and simplified stories for retarded junior high school pupils
A follow-up study of former members of Memorial Junior High School's mentally retarded classes, 1947-1948
A method of problem solving using teacher oral reinforcement
A study of the value of using self-instructive flash cards in the teaching of second grade arithmetic
An experiment in an oral method of arithmetic problem solving
Children's concepts of common fractions in arithmetic
Children's concepts of place value in arithmetic
Comparison of arithmetic achievement tests with the 1957 State of California arithmetic series
The effect of unfamiliar settings on problem solving
The value of using estimation in problem solving