This study analyzes the mathematical knowledge to teach early algebra exhibited by pre-service early childhood education teachers, from the perspective of the Mathematical Knowledge for Teaching (MKT) model. The research adopts a mixed exploratory-descriptive methodological approach, based on the application of the MKT-early algebra questionnaire…

While scholars have proposed incorporating the study of complex phenomena such as chaotic systems in high school and undergraduate-level curricula, the literature on this topic is scant and has focused mostly on the analysis of mathematical models--and often only on certain populations, such as gifted students. We report in this manuscript an…

Internationally, there are concerns that more needs to be done to address the inequalities in participation in science, technology, engineering, and mathematics (STEM) subjects at the degree level. In response, research focused on better understanding what influences young people's STEM participation has focused on a range of factors. This paper…

This paper examines prospective mathematics teachers' knowledge of asymptotes and asymptotic behaviour of functions in calculus. They are university students and future facilitators of knowledge in upper secondary education. We constructed a "reference epistemological model" to describe the knowledge about asymptotes for upper secondary…

Scientific knowledge is a primary resource that scientists use to shape their activities to make sense of natural phenomena. Support for students' adaptation of scientific knowledge can enhance their ability to make sense of the natural world. This study aims to examine how ecological concepts are used when students plan field-based modeling of…

This paper employs Cultural Historical Activity Theory (CHAT) as an analytical heuristic in exploring the internationally prevalent situation of teaching out-of-field. Drawing on interview transcripts, we use CHAT to frame the activity of a young teacher teaching mathematics out-of-field in a small rural K-12 school in Australia. We identify and…

The purpose of the present study was to investigate the impact of an intervention on primary school students' construction of knowledge on ocean acidification and the development of their systems thinking. Eighty-five 11 to 12-year-old students from five different classes of two public primary schools in Greece participated in the 8-h…

The present work refers to a study of 10-12-year-old students' ideas on the self- or hetero-luminosity of the Moon. To check the validity of students' reasoning on this question, we also examined their ideas on the lunar phases and how we see hetero-luminous objects. Students supported their ideas on the self- or hetero-luminosity of the Moon by…

Elementary students demonstrate conflicts when measuring with rulers as well as measuring with discrete units. Their conflicts often lie in their focus on counting tick marks or focusing on the endpoint of objects on rulers or ignoring spaces with discrete units. In this study, we also investigated another area of conflict: students' conceptions…

The initial and continuing training of mathematics teachers continues to be one of the most pressing challenges facing the research community in mathematics education. In this regard, various research agendas have been proposed and developed. Among these, two stand out: the characterization and development of (1) didactic and mathematical…

Interest in Science, Technology, Engineering and Mathematics (STEM) has gained momentum due to increasing calls for a more STEM-literate society. As teaching integrated STEM poses curricular and pedagogical challenges for most generalist primary teachers, professional development (PD) is essential to support them to develop appropriate knowledge…

This research study investigated conceptions about buoyancy held by 55 elementary preservice teachers enrolled in a science methods course who participated in an instructional intervention designed to increase their knowledge about buoyancy. Pre- and post-concept maps were analyzed using a paired sample t test and thematic analysis was used to…

The study assessed the relationship between career preparation, beliefs, attitudes, in-service training, and peer communication of primary school mathematics teachers and their knowledge of students' misconceptions. Seven hundred one Chinese teachers were selected for the test and questionnaire survey. The mathematics teacher test paper had good…

Science, technology, engineering, and mathematics (STEM) is the leading education reform worldwide, yet many teachers need more knowledge and confidence to teach integrated STEM. This study examines the initiative of teaching a STEM-integrated approach through the collaboration of mathematics and science university lecturers and preservice…

This study integrated environmental issues as the initial problem to explore the process of problem-solving of high school students and proposes the concept of environmental problem-solving (EPS) to probe the interaction between high school students' scientific performance and EPS strategies. There were 139 high school students in Taiwan who…