Problems with large class sizes in elementary and secondary schools

Class sizes - too big or too small? - Tutor Hunt Blog

Why Class Size Matters Today - National Council of Teachers of English

Teaching Large Classes, Center for Teaching

Smaller Class Sizes: Pros and Cons

Ineffectiveness of class-size reduction underscores problems with public education in Nevada - Nevada Policy

How important is class size?

How Class Size Affects Student Learning

teachers' perspectives on class size

Class Size: What Research Says and What it Means for State Policy