Nothing will more largely contribute to the teacher's peace of mind or to the pupils' efficiency than proper foresight for the fall. A two or three day incarceration in your empty and silent laboratory and classroom some time between the closing and reopening of school should represent a good investment. During this voluntary exile, put to yourself a few questions and motorize the answers.
©1929 by Iowa State Teachers College
Science Bulletin: Vol. 1:
7, Article 5.
Available at: https://scholarworks.uni.edu/science_bulletin/vol1/iss7/5