This paper examines a didactic phenomenon, a perception that the elements of sets have a common property, e.g. that {1, 2, 3} and {a, b, c} are sets but {1, 2, 3, a, b, c} is not a set. The paper reports manifestations of this phenomenon in one country: across a range of school students in textbooks and in curricula and across pre-service and…

Timelines enhance comprehension and offer a pictorial aid in organising information in a chronological sequence so that growth, change, recurring events, cause and effect, and key events of historical, social, and scientific significance can be better understood. The timelines presented in this document show the journey that mathematics education…

The current COVID-19 situation has seen a plethora of data, statistics and predictions presented to society--some making incredible claims. The authors are concerned that statistics and probability still receive inadequate attention in the classroom, leaving students without the statistical literacy needed to make sense of the claims being made.…

This article critically examines the relationship between recent educational policy and the advancement of second-level subject hierarchies in Ireland. The paradox of promoting an individual subject by means of the matriculation system, while also calling for a broad and balanced curriculum, is questioned. The apparent retreat from a commitment to…

A key issue in the institutionalisation of Mathematics' Education and in the professionalisation of teachers educators consists in characterizing the type of knowledge involved in the formation of primary school teachers of mathematics (Valente, 2017). The aim of this article is to explain how "knowledge to teach" and "knowledge for…

This study provided insights into how upper elementary teachers from three southern school districts used standards based curriculum materials and the resulting changes in their beliefs, knowledge, and practice. Additionally, this study sought to identify whether the following four factors were predictors of change in teacher practice: coherence…

Purpose: New ways of teaching have been under consideration over the last decade. Thus, this study aims to examine the effects of an interdisciplinary educational approach integrating physical education and mathematics on light and moderate-vigorous physical activity (PA), sedentary behavior, and learning subtraction. Method: Forty-six first-grade…

This special issue of the "Canadian Journal of Science, Mathematics and Technology Education" invokes questions intended to further the discourse of citizenship in science and mathematics education, such as, How do we define "citizen" and "democracy"? Is our call for student action hypocritical? Does positioning…

Despite decades of equity- and inclusion-oriented discourse and reform in mathematics education, Black learners in the U.S. continue to experience dehumanizing and violent forms of mathematics education. I suggest that equity for Black learners in mathematics education is a delusion rooted in the fictions of white imaginaries, contingent on…

This commentary highlights the contribution that careful and systematic analyses of curriculum or content standards can make to questions and issues important in the mathematics education field. We note the increased role that curriculum standards have played as part of a standards-based education reform strategy. We also review different methods…

In this article the authors described their exploration of a particular design element they labeled "video in the middle." As part of the video in the middle design, the viewing of carefully selected video clips from teachers' classrooms is sandwiched between pre- and postviewing activities that are expected to support teachers'…

The Learning Passport is a collaboration between UNICEF, the University of Cambridge and Microsoft which aims to tackle an intractable problem: the quality of education in contexts where learners have been displaced. The Learning Passport is a response to the international crisis in education quality and learning outcomes. The project's specific…

The Georgia College mathematics department has reimagined its major requirements to integrate meaningful undergraduate research experiences. We have developed and implemented a multi-year action plan to transform our major. In this article we discuss how the department has developed and implemented a year-long research experience as a capstone…

The pandemic and its disruption of social dynamics, including school dynamics, necessitates a review of both the proposals for education in situations of confinement and the research that must be carried out to account for exceptional educational situations. It is likely that this pandemic is only the first circumstance that has highlighted the…

The Learning Passport is a collaboration between UNICEF, the University of Cambridge and Microsoft which aims to tackle an intractable problem: the quality of education in contexts where learners have been displaced. The Learning Passport is a response to the international crisis in education quality and learning outcomes. The project's specific…