The Nation-wide program in College Physics testing is now in its fourth year and many interesting findings have been made. They were presented by slides and diagrams.
Proceedings of the Iowa Academy of Science
©1937 Iowa Academy of Science, Inc.
Lapp, C. J.
"Some Findings in the Nation-Wide Teaching Program,"
Proceedings of the Iowa Academy of Science, 44(1), 152-152.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/59