The development of the concepts of ratio and fraction in the fourth, fifth, and sixth years of the elementary school
By: by Leslie P. Steffe and Robert B. Parr.
Contributors: Parr, Robert B., joint author.
Publisher: Wisconsin Research and Development Center for Cognitive Learning, University of Wisconsin
Published: 1968
Place of publication: Madison
Language: eng
Number of pages: 43
Subjects: Fractions -- Study and teaching.; Ratio and proportion -- Study and teaching.; Mathematical ability -- Testing.; Mathematics -- Study and teaching (Elementary) -- Wisconsin.
Notes: Bibliography: p. 43.
"Report from the Mathematics Concept Learning Project. Henry Van Engen, principal investigator."