Figure 9: Example from Connected Math: Stretching and Shrinking

Figure 4 from: Lappan, G., Phillips, E. (2009) A Designer Speaks. Educational Designer, 1(3). Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article11

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© ISDDE 2009 - all rights reserved
Burkhardt, H. (2009) On Strategic Design. Educational Designer, 1(3).
Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article9