With the increased emphasis on laboratory work, one of the teacher's big problems is finding enough time to make the necessary preparations. Student assistants can be a big help.
Iowa Science Teachers' Journal
© Copyright 1964 by the Iowa Academy of Science
"How Do You Get Help in the Lab?,"
Iowa Science Teachers Journal: Vol. 2
, Article 6.
Available at: https://scholarworks.uni.edu/istj/vol2/iss2/6