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Riccomini, Paul J. – Learning Disability Quarterly, 2005
The present study investigated 90 elementary teachers' ability to identify two systematic error patterns in subtraction and then prescribe an instructional focus. Presented with two sets of 20 completed subtraction problems comprised of basic facts, computation, and word problems representative of two students' math performance, participants were…
Descriptors: Misconceptions, Word Problems (Mathematics), Subtraction, Mathematics Achievement