A story problem about borrowing money may be represented with positive or negative numbers and thought about in different ways. Learn to identify and value these different perspectives.
Ian Whitacre, firstname.lastname@example.org, is a faculty member in the School of Teacher Education at Florida State University in Tallahassee.
Jessica Pierson Bishop, email@example.com, is at the University of Georgia in Athens.
Randolph A. Philipp, firstname.lastname@example.org, Lisa L. Lamb, email@example.com, and Bonnie P. Schappelle, firstname.lastname@example.org, work at the Center for Research in Mathematics and Science Education at San Diego State University. This group studies children's mathematical thinking. In the past few years, they have focused on how students reason about integers and integer-related tasks.