The relative difficulty of certain topics in mathematics for slow-moving ninth grade pupils
By: by Virgil S. Mallory.
Publisher: Teachers College, Columbia University
Published: 1939
Place of publication: New York
Language: eng
Number of pages: 179
Subjects: Mathematics -- Study and teaching; Children with disabilities -- Education; Ability
Notes: Bibliography: p. 151-160.
Issued also as thesis (Ph. D.) Columbia University.