Figure 5: Example from Frogs, Fleas and Painted Cubes
© ISDDE 2009 - all rights reserved
Lappan, G., Phillips, E. (2009) A Designer Speaks. Educational Designer, 1(3).
Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article11
Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article11