Models are of great value in teaching certain biological subjects. Nearly every teacher feels the need of certain models not obtainable from dealers. With practice and a fair degree of skill, these may be made for the occasion.
Proceedings of the Iowa Academy of Science
©1930 Iowa Academy of Science, Inc.
Guthrie, J. E.
"Some Home-Made Teaching Models,"
Proceedings of the Iowa Academy of Science, 37(1), 400-401.
Available at: https://scholarworks.uni.edu/pias/vol37/iss1/114