The societal demand for graduates with expertise in Science, Technology, Engineering, and Mathematics (STEM) stands in contrast with prevalent issues of diminished interest among high school students in STEM subjects and low completion rates in STEM academic programs. In the Flemish educational context, heterogeneity in STEM preparedness of…

This study aims to develop a test that can be used to explore mental models and representation patterns of objects in liquid fluid. The test developed by adapting the Reeves's Development Model was carried out in several stages, namely: determining the orientation and test segments; initial survey; preparation of the initial draft; try out;…

Proof is a fundamental aspect of mathematics. However, in the high school curriculum, it often receives uneven attention that is focused on form rather than understanding. One avenue for addressing this issue is to change and strengthen teachers' conceptions of proof. To explore this idea, we followed a group of teachers as they participated in a…

The calls for reasoning and proof to have a prominent place in secondary mathematics classrooms raise the question of knowledge that teachers need to support student learning of reasoning and proof. Several conceptualizations of Mathematical Knowledge for Teaching Proof (MKT-P) have been proposed over the years, yet some key questions about the…

Test-taking strategies are discussed in the literature as an important factor affecting test scores and are recommended to be taken into consideration regarding the validity of tests. Although studies have been conducted for more than a quarter century, no agreement has been reached on the dimensions of test-taking strategies. The purpose of this…

In a modern yet demanding society, scientific literacy (SL) is an essential skill that enables the individual to explain, understand and discuss issues related to science, health, and the environment. The purpose of this research study is to validate the Scientific Literacy Assessment (SLA) tool in the Greek language and investigate the level of…

In this paper, we propose an elementary proof of Niven's Theorem in which the tangent function will have a primary role.

Trigonometry is an important part of secondary school mathematics, but it is usually challenging for students to understand and learn. Since trigonometry is learned and used at a university level in many fields, like physics or geodesy, it is important to have an insight into students' trigonometry knowledge before the beginning of the university…

Previous work has focused on positive feelings of mattering, which pertain to the human need to feel significant. In the current article, we examine a complementary yet distinct construct involving feelings of not mattering that may arise from being marginalized and experiences that heighten a sense of being insignificant to others. We also…

Supporting students in making mathematical arguments is an important part of discourse practices in mathematics classrooms. Differences in teachers' support for collective argumentation have been observed and documented, and the importance of the teacher's role in supporting collective argumentation is well established. This article seeks to…

When cognitive and educational tests are administered under time limits, tests may become speeded and this may affect the reliability and validity of the resulting test scores. Prior research has shown that time limits may create or enlarge gender gaps in cognitive and academic testing. On average, women complete fewer items than men when a test…

The accuracy of learning results relies on the evaluation and assessment. The learning goals, including problem solving ability must be aligned with the valid standardized measurement tools. The study on exploring the nature of problem-solving, framework, and assessment in the Indonesian context will make contributions to problem solving…

Task design is increasingly recognised as crucial for enhancing student learning of mathematics. Even so, and despite the significance of mathematical activity related to proofs and counterexamples in school mathematics, the task design principles underpinning students' success in proof-related activity remains under-explored in mathematics…

This study evaluated the psychometric properties of the Student Engagement Instrument--College version (SEI--C) with college students in the southeastern United States. Participants self-selected paper-and-pencil or online administration. Confirmatory factor analysis revealed a modified 5-factor structure. Measurement invariance of the modified…

Secondary education students do not usually perceive history as a subject connected with their lives, backgrounds and interests. At the same time, prospective and in-service teachers do not always have a coherent vision of this discipline, which can reflect on their students' perceptions. This study makes use of a theoretical framework developed…