Free and inexpensive aids for the teaching of mathematics
By: prapared by Kenneth E. Brown
Contributors: United States. Office of Education
Series: Aids for mathematics education; Circular -- no. 348; Circular (United States. Office of Education) -- no. 348
Publisher: Federal Security Agency, Office of Education
Published: 1900
Place of publication: Washington, D.C
Language: eng
Subjects: Teaching; Aids and devices; Bibliography; Mathematics; Study and teaching
Notes: Caption title.