I teach high school mathematics, and this year I have 132 students in 5 classes. That's an average of 26.4 students per class. Not bad, right? Except that one of them only has 13 (Pre-calculus) and one has 33 (Geometry). So the "average" really doesn't tell the story.
What about that Geometry class? I know it would feel better to both me and the students if there were only 25 of them, but would they really do better? This Saturday I am going to participate in a Policy Symposium of National Board Certified Teachers, and one of the topics we will discuss is class size. Superintendent Randy Dorn has recommended class sizes of 15 in Kindergarten to third grade, and 25 for fourth grade through high school. So has the Basic Education Funding Task Force, and the Washington Learns Council. Ample research has shown that reducing class size at the elementary level has a real and lasting impact on student achievement. But there is little evidence that smaller classes have a noticeable impact at the secondary level. When my colleagues complain about large classes it is usually about their own workload rather than their students' success.
So given the reality of limited resources, and scant evidence of class size making much difference at the secondary level, shouldn't we concentrate our efforts at the lower elementary grades?
