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Weisenburgh-Snyder, Amy B.; Malmquist, Susan K.; Robbins, Joanne K.; Lipshin, Alison M. – Learning Disabilities: A Contemporary Journal, 2015
In the generative classroom, teachers provide well-designed learning environments that result in the combination, recombination, and reorganization of repertoires such that new untaught repertoires are likely to occur. One component that can contribute to such generativity is Precision Teaching (PT), a frequency building instructional…
Descriptors: Response to Intervention, Precision Teaching, Progress Monitoring, Mathematics Instruction
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Tournaki, Nelly; Bae, Young Seh; Kerekes, Judit – Learning Disabilities: A Contemporary Journal, 2008
This study examined the effects on math performance of the use of the rekenrek, a manipulative developed by Adrian Treffers. The rekenrek looks like an abacus, but differs in that it is based on a five-structure and not a ten-structure system. It is comprised of two rows of 10 beads, each broken into two sets of 5 by color (i.e., in each row the…
Descriptors: Mathematics Education, Learning Disabilities, Scores, Subtraction