Examine with us how students “understand fractions as numbers” and “view fractions” as being built out of unit fractions” two emphases of CCSSM.
Rebecca R. Perry, firstname.lastname@example.org, works in the San Francisco, California, office of WestEd, a nonprofit research and development agency. Her research and evaluation interests focus primarily on K–grade 8 mathematics policy implementation, teacher professional development, and human and organizational learning.
Catherine C. Lewis, email@example.com, has researched teaching and learning in Japanese schools for more than thirty-five years, translating many Japanese materials and approaches for use by educators (http://www.lessonresearch.net). She works in the School of Education at Mills College in Oakland, California.