The relative difficulty of certain topics in mathematics for slow-moving ninth grade pupils
By: by Virgil Sampson 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.
Thesis (Ph. D.)--Columbia university, 1939.
Vita.
Published also as Teachers college, Columbia university, Contributions to education, no. 769.