To group or not to group, that is the question.
Whether 'tis nobler in the mind to suffer the
slings and arrows of whole class instruction,
or to take arms against a sea of troubles
and by small group teaching, end them?
Taylor, B.M., P.D. Pearson, Clark, K., & Walpole, S. (2002). Effective schools and accomplished teachers: Lessons about primary-grade reading instruction in low-income schools. In B.M. Taylor & P.D. Pearson (Eds.), Teaching reading (pp. 3-72). Mahwah, NJ: Lawrence Erlbaum.