Accountability manual. (2007, May). Texas Education Agency: Department of Assessment, Accountability, and Data Quality -- Division of Performance Reporting. Texas Education Agency. Retrieved December 6, 2007 at http://www.tea.state.tx.us/perfreport/account/2007/manual/body.html.
Baroody, a.J., & Coslick, R.T. (1998). Fostering children's mathematical power: An investigative approach to K-8 mathematics instruction. Mahwah, NJ: Lawrence Erlbaum Associates.
Chanter, C., & Welsh, L. (2000, December). Fifth-grade students experience careers that use mathematics. Teaching Children Mathematics, 7(4), 236.
Chapter 111. Texas essential knowledge and skills for mathematics: Subchapter a. Elementary. (2007). Texas Education Agency. Retrieved December 6, 2007 at http://www.tea.state.tx.us/rules/tac/chapter111/ch111a.html.