This study, which was reviewed through the Registered Report process, examined the initial efficacy of the Scientific Explorers program (Sci2) on second-grade students' science achievement. Sci2 is grounded in the growing body of empirical research on science instruction, embedding principles of explicit instruction within a guided inquiry-based…

Mastering traditional algorithms has formed mathematics teaching in primary education. Educational reforms have emphasized variation and creativity in teaching and using computational strategies. These changes have recently been criticized for lack of empirical support. This research examines the effect of teaching two differently structured…

This study sought to examine sustained, school-based professional development (PD) on explicit reading comprehension strategy instruction (ERCSI) and its influence on teacher knowledge and practice and on student outcomes. Eight teachers participated - four first-grade and two teachers each from second and third grade. At the beginning of the…

This is a report of a professional development project. The purpose of the project was to provide professional development to teachers in vocabulary instructional strategies and to examine vocabulary acquisition of English language learners. The participants were 8 second grade ELL students and 6 second grade teachers. The eight second grade…