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.
Robin Angotti, firstname.lastname@example.org, is an associate professor of mathematics and the interim director of the Teaching and Learning Center at the University of Washington in Bothell. She teaches Probability and Statistics for Engineers and collaborates with educators of all levels on methods of teaching that lead to improved student learning outcomes.
Rejoice Mudzimiri, email@example.com, is an assistant professor of mathematics education at the University of Washington in Bothell. She is interested in the use of technology in K-16 mathematics classrooms, mathematical modeling, and teacher education.