Exploring Parks and Playgrounds : Multiplication and Division of Fractions

Cathy Fosnot is a leading voice in mathematics education. She is Professor Emerita of Education at the City College of New York and the founder of Mathematics in the City, a national center for professional development located at the college. In 2007 she established New Perspectives on Learning to devote her time to speaking around the world, fostering school change through professional learning and support, and producing new resources and materials.

Watch Cathy talk about the importance of context in math.

Follow Cathy on Twitter @ctfosnot

Lynn D. Tarlow is a professor of mathematics education at The City College of New York. She has extensive experience in teaching mathematics to children at all levels and in creating professional development programs for teachers, coaches, and supervisors. She is currently directing the Mathematics in the City professional development middle school initiative--Building Collaborative Communities of Practice. Her research interests lie in the study of students' development of meaningful mathematical ideas and the teacher's role in empowering them.