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Jordan, LuAnn; Miller, M. David; Mercer, Cecil D. – Learning Disabilities: A Multidisciplinary Journal, 1999
A study of 125 elementary students with and without learning disabilities compared effects of concrete to semiconcrete to abstract (CSA) instruction in fraction concept and skills to instruction that was based on textbook curriculum. Students taught fraction concepts and skills in a CSA sequence performed significantly better. (Author/CR)
Descriptors: Elementary Education, Elementary School Mathematics, Fractions, Instructional Effectiveness

Schutt, Patricia Walsh; McCabe, Virginia Marie – Learning Disabilities: A Multidisciplinary Journal, 1994
This article describes the introduction of writing portfolios to elementary school students with learning disabilities in self-contained special education classrooms. It discusses getting started, contents of the portfolio, instructional goals and objectives, conferences, observations, and portfolio evaluation. (Author/DB)
Descriptors: Elementary Education, Evaluation Methods, Learning Disabilities, Portfolios (Background Materials)