The application of decomposition strategies (i.e., associative or distributive strategies) in two-digit multiplication problem solving supports algebraic thinking skills essential for later complex mathematical skills like solving algebra problems. Use of such strategies is also associated with improved accuracy and speed in mathematical problem…

To become an expert, it is typically accepted that one must learn a subject to accuracy. However, an alternate approach is to learn to fluency. Learning to fluency produces expert, competent performers. Previous studies have typically looked at the effects of learning to fluency for typically developing children and children with intellectual…

Writing is a skill that has increased in significance for both researchers and classroom teachers due to changes in recent standards. Currently, many high school English Language Learners (ELLs) are struggling to master this priority skill. A strategy that has been shown to be effective for adolescent writers is Self-Regulated Strategy Development…

The number of English language learners (ELLs) in public schools has increased significantly over the past decade. As a result of gaps in communication, instruction, teacher preparation, and cultural mismatch, many ELLs with and without disabilities are unable to read English at grade-level. This results in higher likelihood for grade retention,…

The aims of this study were to investigate how upper-elementary-grade students compare the volume of rectangular prisms of equal volume (specifically, students' noticing and reasoning for invariance of volume and coordination of the three linear dimensions of rectangular prisms) and how students' levels of sophistication in volume measurement…

This dissertation analyzes differences found in Spanish-speaking middle school and high school students in algebra-based problem solving. It identifies the accuracy differences between word problems presented in English, Spanish and numerically based problems. The study also explores accuracy differences between each subgroup of Spanish-speaking…