REFERENCES

2 THE NATURE OF MATHEMATICS
    2B) MATHEMATICS, SCIENCE, AND TECHNOLOGY

     Brown, C., Carpenter, T., Kouba, V., Lindquist, M., Silver, E., & Swafford, J. (May 1988). Secondary school results from the fourth NAEP mathematics assessment: Algebra, geometry, mathematical methods, and attitudes. Mathematics Teacher, 337-347, 397.