Fractions are an important mathematical concept for elementary students. However, students with mathematics learning disabilities (MLD) struggle with learning fractions. Research has demonstrated that concrete-representational-abstract (CRA) instruction is an effective practice for students with learning and developmental disabilities. Here we…

Algebra problem solving is one of the most difficult areas in the mathematics curriculum for secondary students with learning disabilities (LD) due to the higher-order reasoning demands and strategic thinking required. The purpose of this review is to examine how effective algebra problem-solving interventions conceptualize the cognitive processes…

Research to identify validated instructional approaches to teach math to students with LD and those at-risk for failure in both core and supplemental instructional settings is necessary to assist teachers in closing the achievement gaps that exist across the country. The concrete-to-representational-to-abstract instructional sequence (CRA) has…

The "Wilson Reading System"[R] is a reading and writing program developed by Barbara Wilson and distributed by Wilson Language Training. It provides a curriculum for teaching reading and spelling to individuals of any age who have difficulty with written language. The program directly teaches the structure of words in the English…

The use of predictable and unpredictable trial sequences during small-group instruction was evaluated in teaching word and abbreviation identification to 4 students (age 8-10) with learning disabilities. No consistent effects of the trial presentation methods were found across 3 investigations, which involved progressive time-delay procedures and…

Sixth and seventh grade students (n=18) with mild to moderate learning disabilities (LD) were taught social studies by using instructional sequence techniques. Results found LD students performed significantly better when these techniques (breaking new material into small units of information and providing frequent student practice and teacher…

This article presents the "concrete semiconcrete abstract" (CSA) teaching sequence for teaching basic math skills to students with and without learning disabilities. Guidelines include providing a minimum of nine instructional lessons (three at each level), each with four lesson steps. Validation of the CSA sequence and lesson format with 15…