In high school geometry, students are expected to deepen their understanding of geometric shapes and their properties, as well as construct formal mathematical proofs of theorems and geometric relationships. The process of helping students learn to construct a geometric proof can be challenging given the multiple competencies involved (Cirillo…

Evaluation is an important tool for facilitating and promoting the growth of school members and improving the quality of schooling. The Organisation for Economic Co-operation and Development (OECD) claimed that effective school evaluation involves continuously using the results of such evaluations in school operations (2019). Based on the…

This paper examines Grade 10 students' conceptions of proof in a secondary school in Singapore. Using a purposive survey of 9 mathematical items, proofs by 8 students for two items, one on Number and Algebra and another on Geometry and Trigonometry, were coded using Harel's proof schemes. The findings show that the students' proofs for the two…

The implementation of Positive Behavioral Interventions and Supports (PBIS) has been attributed to a decrease in office discipline referrals (ODRs) and suspensions and to increase academic performance, and engagement, as well as staff, family, and student perceptions of a safe and positive school climate. High schools have had more significant…

Electronic teaching materials have an important role in improving the quality of learning, making learning more interactive, and making the learning process more flexible and productive. The development of the increasingly sophisticated era, technology, information, and communication have also developed and have an impact on learning media,…

Background/purpose: Assessment for Learning is an integral part of the learning process that provides feedback and improves teaching methods. Teachers experience problems such as limited conceptual understanding, difficulties in designing instruments, and time constraints. This study aims to develop and validate an innovative platform for…

The Interpersonal Behaviors Questionnaire (IBQ) in Sport assesses athlete perceptions of coach interpersonal behaviors that support or thwart athletes' basic psychological needs. While different sources of validity evidence for responses to the IBQ have been provided for adults, only validity evidence for relations to other variables has been…

This was the first study in which a psychometrically validated STEM measure, the "Student STEM" (S-STEM), was studied for HSSWD. This study also represented the first time a psychometrically validated STEM measure, the "Student STEM" (S-STEM), was studied for HSSWD. Data were collected from 229 HSSWD in a western state and…

This study examines the predictive validity of high school grade point average and ACT® Composite score on first-year college grade point average prior to and after the onset of the COVID-19 pandemic in 2020. The findings reveal that the predictive power of high school grade point average changed significantly after 2020, suggesting that students…

It is widely recognized that students encounter difficulties with proof across all grades and beyond, yet standardized instruments related specifically to students' perceived self-efficacy for mathematical proof have not been readily available. The purpose of this study was to develop and investigate preliminary validity evidence for a new…

Experiments serve different purposes in chemistry education ranging from illustrating a certain subject matter to providing data for school-based research projects. When students use these experiments to collect data and draw conclusions, it is important that these experiments are valid. In this study, a new experiment for the determination of the…

Effectively predicting academic success is essential for providing students with the resources they need to succeed in their careers and for matching individuals to postsecondary institutions that suit their needs. Despite evidence for ACT scores as meaningful predictors of both first-year grade point average (FYGPA) and degree completion, little…

The role of virus is an essential material that is not discussed completely in the lesson because of the limited information presented in the reference book. The role of viruses is important to learn because it can increase knowledge and know the role of viruses in life. This research aims to (1) develop interactive learning media based on…

This study aims to examine the mathematical reasoning and proof processes of gifted students within the framework of Toulmin's Argumentation Model. Grounded in the Rich Teaching Model, the instructional design included seven differentiated lesson plans. The research was conducted with two 9th-grade students in a Science and Art Centre over 20…

When conducting a postal survey, a traditional recommendation is to use paper postage stamps instead of an automated postage system, to make sure that invitations have a more personal and attractive appearance. In this research note, we investigate whether this traditional recommendation is still valid. In the autumn of 2020, a postal survey was…