Conceptualized in France during the sixties, the Theory of Didactical Situations [TDS] is a pivotal framework for developing mathematics teaching and learning processes. Despite the increasing qualitative studies over the last ten years, there remains a dearth of analysis of its effects on mathematics education. Through a Grounded Formal Theory…

It is important to work on verbal mathematical problem-solving skills, which is one of the high-level skills with which students have difficulty. Supporting problems with visuals has been suggested by mathematics educators to develop this skill. This study examined the effect of the visualization of mathematical problems on the problem-solving…

Children's early accuracy on place value (PV) tasks longitudinally predicts their later multidigit calculation skills. However, another window into children's emerging base-ten concepts is the pattern of errors -- "smart errors" -- they exhibit on these measures. Past research has speculated that these smart errors -- similar to invented…

Pedagogical content knowledge (PCK) has been widely recognised as an important aspect of the expertise for teaching. However, the extent to which teachers' own teaching practice can be a learning resource for them to develop PCK has not been systematically explored. This empirical study aimed to explore the unique contribution of the work of…

Studies have found that some teacher professional development programs that are based on Cognitively Guided Instruction (CGI) can increase student mathematics achievement. The mechanism through which those effects are realized has been theorized, but more empirical study is needed. In service of this need, we designed a novel measure of…

Teacher educators globally have argued that developing coherent programs can combat the fragmentation that often characterizes teacher education and better support teacher learning. Yet, there is little research on coherence in mathematics teacher education, especially from the perspectives of preservice teachers. To that end, in this article, we…

The aim of this study was to analyze the joint, relative, and unique predictive value of students' prior knowledge of mathematics (knowledge of fractions and ability to divide natural numbers) and general cognitive ability (fluid intelligence and working memory) upon general mathematics achievement in the last year of primary school. Seventy-five…

This article reports on a framework for collective professional learning and its influence on the development of four early-career mathematics teacher educators as they work to transform their practice. The Collective Reflection for Change (CRC) framework centers on a shared referent to orient collaborative noticing and wondering. Findings from an…

Teaching style has long been recognized as a factor influencing students' achievement, particularly in subjects like mathematics. However, its impact on aspiring elementary mathematics teachers, often considered generalists, remains relatively underexplored. Based on the theoretical underpinning of self-determination theory, the paper examines how…

As technology becomes increasingly prominent in modern mathematics education, there's a growing need to understand the essential knowledge mathematics teachers need to effectively integrate technology in algebra instructions. This study therefore enhances the current Knowledge of Algebra for Teaching (KAT) framework, which theorises teachers'…

The study examines pre-service mathematics teachers' perceptions of the integration of technology into algebra education. With the growing emphasis on technology in education, it is crucial to understand how pre-education teachers see technology and engage in it when teaching mathematics. The research aims to gain a view of their beliefs,…

The aim of the study is to examine assessment experiences and practices in mathematics in high school from the students' perspective. To gain insight into the students' experiences and practices, we used a qualitative approach. The data are based on qualitative focus group interviews with first year students in the general studies education…

This case study investigated the relationship between five undergraduate interior design students' reasoning with numerical units and reasoning about length and area. The multiplicative concepts frame participants' coordination of numerical units. Differences were found between participants' reasoning about length and area, based on their…

Background: Real-world problems are important in math instruction, but they do not necessarily trigger students' task motivation. Personalizing real-world problems by (1) matching problems to students' shared living environment (context personalization) and (2) asking students to pose their own problems (active personalization) might be two…

Student self-beliefs can shape their self-efficacy and influence achievement. Further, student self-beliefs can be influenced by teachers' own beliefs and expectations for their students. Yet, the relations between teacher expectations, teacher and student gender, student mathematics achievement outcomes and self-efficacy have been little…