The money cost of repetition versus the money saving through acceleration
By: by Leonard P. Ayres ...
Series: [Russell Sage foundation. Dept. of child hygiene. Pamphlets]; no. 111
Published: 1912
Place of publication: New York City
Language: eng
Number of pages: 12
Subjects: Education -- United States -- Finance.; Education -- United States -- Statistics.; Children, Backward.; Slow learning children.
Genres: Statistics.
Notes: "Reprinted from the American school board journal, January, 1912, by the Department of child hygiene. Russell Sage foundation."