Exact prices change frequently, which is why only approximate ranges are listed.
$ - Under $5
$$ - Between $6 and $50
$$$ - Between $51 and $250
$$$$ - Over $250
Bray, L. M. (1988). Increasing students' abilities to solve word problems through concrete and problem writing experiences. Nova Southeastern University, Fort Lauderdale FL.
Montague, M., Enders, C., & Dietz, S. (2011). Effects of cognitive strategy instruction on math problem solving of middle school students with learning disabilities. Learning Disability Quarterly, 34, 262-272.
Montague, M., Warger, C., & Morgan, H. (2000). Solve It!: Strategy instruction to improve mathematical problem solving. Learning Disabilities Research and Practice, 15, 110-116.
Warger, C. (2002). Teaching students strategies for mathematical problem solving. ERIC Clearinghouse on Disabilities and Gifted Education. Arlington VA.
Written by Bronwyn Lamond, Last Revision April 2018