1. Waxman, H. C., & Walberg, H. J. (1986). Effects of early field experiences. In J. D. Raths & L. G. Katz (Eds.), Advances in teacher education (Vol. 2, pp. 165–184). Norwood, NJ: Ablex
2. Classroom Instruction and Learning Environment Differences between Effective and Ineffective Urban Elementary Schools for African American Students
3. Waxman, H. C. (1995). Classroom observations of effective teaching. In A. C. Ornstein (Ed.), Teaching: Theory into practice (pp. 76–93). Needham Heights, MA: Allyn & Bacon
4. Classroom and instructional learning environment differences between resilient and non-resilient elementary school students;Padrón;Journal of Education for Students Placed at Risk of Failure,1999
5. The Missouri Mathematics Effectiveness Project: An experimental study in fourth-grade classrooms.