This study investigated the sustainability effects of the schema-based instruction (SBI) program and corresponding PD on the instructional practices of two cohorts of teachers (i.e., SBI experienced-teacher implementers and SBI novice-teacher implementers) and on students' ability to reason with proportions and overall mathematics performance. SBI…

This study examined how adolescents' emotions in mathematics develop over time. Growth curve modeling was applied to longitudinal data collected annually from 2002 to 2006 (Grades 5-9; N = 3425 German adolescents; M[subscript age] = 11.7, 15.6 years at the first and last waves, respectively; 50.0% female). Results indicated that enjoyment and…

This is a school-based intervention study to promote food label understanding among early adolescents. The researcher assessed the existing nutrition knowledge, attitude, and understanding of food labels. Based on Bandura's social cognitive theory, an educational program was developed. The change was accessed from pre- and post-test intervention…

Selecting and remembering the necessary information from rapidly increasing information requires summarization skills. Research on improving students' summarization skills has focused on deletion, generalization, and reconstruction strategies. However, direct teaching of these strategies does not yield successful results. For this reason,…

This paper studies grade 7 (age 13) students' expressed understanding about the equal sign/notion of equivalence in order to investigate what aspects of the concept that could be seen as an established knowledge at lower secondary school/middle school. Using items from different instruments and combining these to a new one that covered a broad…

This is one of the first studies to evaluate the impact of computer-based individualized instruction in a developing country. We randomly assigned 1,528 students in grades 6-8 in 15 "model" public schools in Rajasthan, India who were using a computer-adaptive learning software to: a control group, in which they were only able to access…

This study aims to investigate the effect of the online flipped learning model (OFLM) when integrated into a mathematics course in an emergency remote teaching process on seventh grade students' academic achievement, their attitudes towards their mathematics course, and their cognitive load. The study was designed as a crossover experimental…

The aim of this study is to explore the relation of morphological awareness to vocabulary, word reading, and reading comprehension for middle school students in Korea. A total of 121 students (73 boys and 48 girls) in Grade 7 from two middle schools in a metropolitan city in South Korea participated in the study. The students were assessed on the…

This mixed-methods study explored the impact of cinematic virtual reality (CVR) on seventh-grade students (n = 66) in a school library. The research was comprised of two phases, integrating data from questionnaires and student/teacher interviews. The study focused on "The Displaced," a documentary about child refugees, presented in two…

Inferencing is an important and complex process required for successful reading comprehension. Previous research has suggested instruction in inferencing is effective at improving reading comprehension. However, varying definitions of inferencing is likely impacting how inferencing instruction is implemented in practice and inferencing ability is…

The leading cause of preventable disease, disability, and death in the United States is tobacco product use. The 2022 National Youth Tobacco Survey, which was completed in 2022, showed that the e-cigarette epidemic among youth continues to remain a public health threat. The survey revealed that over 2.5 million middle and high school students…

In the present study, we illuminate students' multiplicative reasoning in the context of their units-coordinating activity. Of particular interest is to investigate students' use of three levels of units as given material for problem-solving activity, which we regard as supporting a more advanced level of multiplicative reasoning. Among 13 middle…

We examined the effects of a text-based argument writing intervention, "Triple Q," on argument writing skills in a cluster-randomized trial where groups of middle schools were assigned to conditions within school-level SES blocks. The intervention comprised three 15-day units. Students read and discussed argument texts representing…

Background: While vaccines have reduced the incidence of vaccine-preventable diseases, vaccine hesitancy threatens the re-emergence of childhood infectious diseases. Purpose: This randomized controlled study evaluated an online vaccine education program to advance vaccine acceptance among middle-school students. Methodology: Study participants…

This study explored four middle-school mathematics teachers' provision of non-examples and instructional explanations in teaching rational numbers to seventh-grade students. The data sources were 8 lesson hours of observations conducted in four different classrooms. Yin's [(2018). "Case study research and applications: Design and…