Teaching devices on the high-school level.
Contributors: University of Illinois at Urbana-Champaign. Bureau of Educational Research.
Series: Illinois. University. Bureau of Educational Research. Bulletin, no. 56; Bulletin (University of Illinois at Urbana-Champaign. Bureau of Educational Research) -- no. 56.
Publisher: University of Illinois
Published: 1931
Place of publication: Urbana
Number of pages: 42
Subjects: Teaching -- Aids and devices.; High school teaching.
Notes: On cover: University of Illinois bulletin, v.28, no.42.