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Peterson, Susan K.; And Others – Learning Disabilities Research, 1988
The study compared two methods of teaching an initial place value skill: a concrete, semiconcrete, abstract teaching sequence and an abstract-only presentation. Learning-disabled elementary and middle school students (N=24) using the concrete to abstract teaching sequence performed significantly better on three posttests than students taught the…
Descriptors: Concept Formation, Elementary Education, Instructional Effectiveness, Learning Disabilities
