An experiment in the use of a teaching unit in science
By: by Archer Willis Hurd ... with foreword by Otis W. Caldwell ...
Publisher: Pub. for A.W. Hurd, Institute of school experimentation, Teachers college, Columbia University
Published: 1933
Place of publication: New York city
Language: eng
Number of pages: 50
Subjects: Education -- Experimental methods.; Physics -- Study and teaching.
Notes: "The unit topic 'Electricity in communication' was selected."--p. 8.
"Books for supplementary reference": p. 12-13.