Summary of arithmetic investigations (1925-27)
Series: University of Chicago.  Dept. of Education. Supplementary Educational Monographs -- No. 27.  Suppls. 1-3
Publisher: University of Chicago
Published: 1926
Place of publication: Chicago
Language: eng
Subjects: Arithmetic -- Study and teaching
Notes: Reprinted from Elementary School Review, Vols. 26-28.