Figure 11: Video of class discussion on multiplication algorithm for proper fractions from Bits and Pieces II

Problem 3.1 from Bits and Pieces II, begins the study of multiplication of proper fractions. During the class summary of the problem, one student sees a pattern for multiplying fractions. With the aid of the teacher the class proves his conjecture is valid.

Task used in Figure 11
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Lappan, G., Phillips, E. (2009) A Designer Speaks. Educational Designer, 1(3).
Retrieved from: http://www.educationaldesigner.org/ed/volume1/issue3/article11