Baroody, A.J. (1987). Children's mathematical thinking: A developmental framework for preschool, primary, and special education teachers. New York: Teachers College Press.
Burns, M. (1992). About teaching mathematics: A K-8 resource. Sausalito, CA: Math Solutions Publications.
Driscoll, M. J. (1981) The teacher and the textbook. In research within reach: Elementary school mathematics. Reston, VA.: National Council of Teachers of Mathematics, Inc.
Mathematical Sciences Education Board, National Research Council. (1990). Reshaping school mathematics: A philosophy and framework for curriculum. Washington, DC: National Academy Press.
Mathematical Sciences Education Board, National Research Council. (1991). Counting on you: Actions supporting mathematics teaching standards. Washington, DC: National Academy Press.
National Center for Educational Statistics. (1991). The state of mathematics achievements. NAEP's 1990 Assessment of the Nation.
National Center for Education Statistics. (1995). The condition of education. Washington, DC: National Center for Education Statistics.
National Council of Supervisors of Mathematics. (1989). Essential mathematics for the twenty-first century: Position of the NCSM. Arithmetic Teacher, 37(1), 44-46.
National Council of Teachers of Mathematics: Commission on Standards for School Mathematics. (1989). Curriculum and evaluation standards for school mathematics. Reston, VA: The Council.
National Council of Teachers of Mathematics: Commission on Teaching Standards for School Mathematics. (1991). Professional standards for teaching mathematics. Reston, VA: The Council.
National Research Council. (1989). Everybody counts: A report to the nation on the future of mathematics education. Washington, DC: National Academy of Sciences.
National Research Council. (1990). Reshaping school mathematics: A philosophy and framework for curriculum. Washington, DC: National Academy of Sciences.
Pressley, M. (1987). What is good strategy use and why is it hard to teach? An optimistic appraisal of the challenges associated with strategy instruction. Paper presented at annual convention of American Educational Research Association, Washington, D.C.
Reys, R., Suydam, M., & Lindquist, M. (1995). Helping children learn mathematics. Boston, MA: Allyn and Bacon.
Ross, R., & Kurtz, R. Making manipulatives work: A strategy for success. Arthmetic Teacher, #40, pp. 254-257.
Silver, E. A., Kilpatrick, J., & Schlesinger, B. (1990). Thinking through mathematics. New York: College Entrance Examination Board.
Suydam, M. (1990). Planning for mathematics instruction. In mathematics for the young child (ed. J. N. Payne). Reston, VA: NCTM.
VandeWalle, J. A. (1009, 1995). Elementary school mathematic: Teaching developmentally. White Plains, N.Y.: Longman.