During the fall semester of 1969 I had occasion to try some elementary science units with a low group of ninth graders. Of the units tried, the E.S.S. "Batteries and Bulbs" had such interesting results that it instilled in me the idea of trying the unit with my regular ninth grade class.
Iowa Science Teachers' Journal
© Copyright 1970 by the Iowa Academy of Science
McVey, Richard D.
"Batteries and Bulbs With an Average Class of Ninth Graders,"
Iowa Science Teachers Journal: Vol. 8
, Article 12.
Available at: https://scholarworks.uni.edu/istj/vol8/iss2/12