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By A J Oldknow; Carol Knights

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Leatham, K. and Sanchez, W. B. (2002). Handheld Graphing Technology in Secondary Mathematics: Research Findings and Implications for Classroom Practice. Dallas, TX: Texas Instruments, Inc. Burrill, G. and Dick, T. (2006). Presentation at National Council of Supervisors of Mathematics Annual Meeting, Atlanta, GA. , Burrill, G. and Brady Gill, L. (2007). ‘New technologies offer new ways to engage students’. NCSM Newsletter, 38 (1), 19–21. Dossey, J. and Halvorsen, K. and McCrone, S. (2008). Mathematics Education in the United States 2008: A Capsule Summary Fact Book.

In examining strategies for finding more points that satisfy the target equation, students can also make a connection to slope. 4) connects to the earlier documents and allows students to experiment with a system of equations by finding the ‘balance point’ for both equations at the same time. The next figures use the balance scales to investigate dependent and inconsistent systems. 20 Mathematics Education with Digital Technology As students make conjectures about strategies for balancing both the equations at the same time, they can develop a sense of how the two equations are interacting – and with the right questions, make connections to the graphs of those equations and what the intersection would mean.

Stephens, A. and Asquith, P. (2007). ‘Middle school mathematics teachers’ knowledge of students’ understanding of core algebraic concepts: Equal sign and variable’. Mathematical Thinking and Learning, 9 (3), 249–72. Leaders and Laggards: A State-by-state Report Card on Educational Innovation. (2009). S. Chamber of Commerce, and Frederick M. Hess, director of education policy studies at the American Enterprise Institute. pdf (accessed on 9 November 2009). , and Peterson, B. (2005). ’ In Lloyd, G.

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