The concrete-representational-abstract (CRA) approach is an instructional framework for teaching math wherein students move from using concrete materials to solve problems to using visual representations of the materials, and finally abstract concepts. This study provides a literature synthesis and meta-analysis of the effectiveness of the CRA…

This pilot study examined the feasibility of using worked examples as a mechanism to improve verbal explanations of fractions concepts among Grade 5 students with mathematics difficulties in a small-scale randomized controlled trial (RCT) before scaling up to a large-scale RCT. Students (N = 49) were randomly assigned to a business-as-usual (BAU)…

This study examined the influence of addition and subtraction practice embedded within a word-problem intervention for Grade 3 students experiencing word-problem difficulty. Students (N = 448) were randomly assigned to one of two variants of a word-problem intervention or a business-as-usual comparison condition. Within the word-problem…

Mixed-methods research can uniquely inform special education practice by combining qualitative and quantitative research approaches. However, its distinct features can also make mixed-methods research difficult to understand and apply. In this article, we provide an introduction to mixed-methods research purposes, designs, and quality…

This formative study of a multiplicative reasoning (MR) intervention explored the intervention's potential for improving the ability of third-grade struggling students' ability to reason with multiplicative concepts and procedures. The feasibility of the study was examined in a school setting before a randomized control trial was conducted.…

Increased expectations for writing performance have created a need for formative writing assessments that will help middle school teachers better understand adolescents' grade-appropriate writing skills and monitor the progress of students with or at risk for writing disabilities. In this practice piece, we first explain research-based…

This study investigated the effect of the self-regulated strategy development (SRSD) instructional approach on the reading comprehension of systems-involved youth served in a secure juvenile justice setting. Using a cluster randomized controlled trial (CRT) pretest/posttest design, youth in the treatment group were taught the TRAP mnemonic (Think…

This article will discuss ways to use self-regulated strategy development for argumentative writing across content areas. The goal of self-regulated strategy development is for students to generalize the use of the strategy across settings, allowing them to become fluent and proficient writers in all areas. In addition, the generalization of the…

This article is the first part of a two-part article focusing on the 35-year journey of a team of researchers as they navigated the research-to-practice road related to the development of the Content Enhancement Routines, instructional routines to be used during inclusive subject-area instruction. Part I tells the story of the first half of that…

The purpose of the systematic review of mathematics intervention syntheses was to identify patterns and gaps in content areas, instructional strategies, effect sizes, and definitions of learning disabilities (LD), mathematics LD (MLD), and mathematics difficulty (MD). Using rigorous inclusion criteria, we evaluated 36 syntheses that included 836…

Eliciting student thinking during mathematics instruction allows teachers to choose tasks with high cognitive demand while also engaging students to use productive struggle to solve mathematical problems, thus increasing their conceptual understanding. Often, students who require intensive intervention in mathematics, in particular, students who…

In this synthesis, we analyzed 10 prealgebraic reasoning interventions for students with mathematics difficulty (MD) in Grades 6 through 8. All interventions focused on one or more prealgebraic concepts including integer operations, algebraic expressions and equations, and functions. Of the 10 intervention studies, six employed single-case design…

Meeting the needs of English learners (ELs) effectively must be an individualized, purposeful, and data-driven process. Progress monitoring can help practitioners to target their EL students' most significant academic and linguistic needs and, subsequently, develop and deliver instructional programming that may help students develop to their…

Culturally and linguistically diverse (CLD) students comprise a substantial population of students with learning disabilities, and are historically disproportionately represented in special education. To effectively teach CLD students with learning disabilities, teachers should integrate evidence-based practices and culturally sustaining pedagogy…

This single-case meta-analysis is the first to provide a quantitative synthesis of the published literature on mathematics word problem-solving intervention studies for English learners with learning disabilities and mathematics difficulties. A total of ten single-subject studies were included for analysis. The current study investigated the…