@article {MATHEDUC.06210879,
author = {Lamb, Lisa L. and Pierson Bishop, Jessica and Philipp, Randolph A. and Schappelle, Bonnie P. and Whitacre, Ian and Lewis, Mindy},
title = {Developing symbol sense for the minus sign.},
year = {2012},
journal = {Mathematics Teaching in the Middle School},
volume = {18},
number = {1},
issn = {1072-0839},
pages = {5-9},
publisher = {National Council of Teachers of Mathematics (NCTM), Reston, VA},
doi = {10.5951/mathteacmiddscho.18.1.0005},
abstract = {Summary: Research on how students make sense of and use the minus sign indicates that students struggle to understand the multiple meanings of the minus sign. Teachers can support students in developing robust understanding of each interpretation of the minus sign, and associated symbol sense, so that they can move among the meanings and can recognize and use each meaning seamlessly.},
msc2010 = {H23xx (H33xx F43xx E43xx)},
identifier = {2013e.00535},
}