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Robin Angotti

The world today is inundated with data that communicate important mathematical ideas in a variety of representational forms. These different representations fundamentally affect how people interpret and use those ideas. However, graphical representations of data are no longer the typical static representations taught in secondary classrooms. Technological advances have given rise to nontraditional, multidimensional graphical representations that could not be displayed on a twodimensional sheet of paper.

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Robin L. Angotti and Rejoice Mudzimiri

Measuring and comparing water flow rates from cups of different sizes and materials is an intuitive way of modeling with linear functions and provides multiple entry points for all students to engage with the mathematics.

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Keri J. Marino and Robin L. Angotti

Journals can be used as a teaching tool to enhance mathematical understanding by allowing students to organize and communicate their reasoning, to reflect on their own learning, to record their journey through a mathematics course, and to think about and test ideas (McIntosh and Draper 2001). Although these purposes align with the Process Standards defined by the National Council of Teachers of Mathematics (NCTM 2000), mathematics journals are still infrequently used as a learning tool in today's classes.