We discuss an original study and two replications conducted over 18 years examining the impact of Teacher Study Group (TSG) in Vocabulary, a professional development (PD) approach for improving pedagogy and student learning. Study 1 focused on the design and development of the PD and included a small-scale randomized controlled trial to assess the…

The present study assessed the effectiveness of the ECRIMO educational application designed to build first-grade level spelling skills. We tested whether using the app to teach spelling would be as effective as providing the same training using traditional paper exercises. The effect of integrating gamification into mobile learning apps, which has…

In order to investigate the impact of science drawing instruction in a first-grade unit on carnivorous plants (CPs), we analysed student-produced drawings after explicit instruction in drawing scientifically (n=38), as well as compared their drawings with students in a previous implementation (year 1) who did not experience explicit drawing…

Research Findings: The purpose of this study was to test a theoretical measurement model representing four proposed dimensions of the classroom ecology in pre-K to third-grade classrooms. The four proposed dimensions of Classroom Composition, Peer Network and Norms, Teacher Practices, and Student Experiences were evaluated using data collected in…

The purpose of this study was to examine how classroom language contexts characterized by peer language skills and proportions of dual language learners (DLL) influenced English language development for DLL and non-DLL children. Participants were 2,131 children from 135 classrooms across preschool through Grade 3. Children were classified into…

Picture books have the potential to engage students in multimodal ways of learning in early education setting. This pilot study aims to investigate the efficacy of using picture books specifically written to convey increasingly complex ecosystem concepts and their influence on introducing ecoliteracy to first-grade students. Under the central…

In this study, we explore how cross-linguistic differences can contribute to children's scientific thinking. We compared first and third grade Chinese students' pre-instructional ideas of the earth expressed in clinical interviews with that of their English-speaking and Greek-speaking counterparts (as recorded in the literature). Inspired by a…

As the United States experiences greater income inequality, more and more students experience an early science achievement gap. This study tested several competing theoretical models of early science achievement with a longitudinal sample of 14,624 children who were followed from kindergarten entry to the end of 1st grade. To understand why and…

The present study investigated whether children with Specific Language Impairment (SLI) need a special spelling education program, by examining whether the early spelling of children with SLI is quantitatively and qualitatively different from the spelling of typically developing children. Two groups of first grade children participated: 39…

Through a single case study and from the interpretive paradigm, the author described a first-grade student?s self-efficacy beliefs about learning English in various English language learning tasks and across school-based and home-based contexts. The student came from China and had been living in a Chinese community in the United States for one…

(Purpose) The purpose of this study was to investigate the effects of classroom sound field amplification on communication in kindergarten through grade 3 classrooms. (Methodology) Sixty classrooms were involved in the study; half of the classrooms were provided with sound field amplification. The flow of communication was measured through…