Spatial reasoning is seen as increasingly important in STEM fields. Within mathematics, geometry is a potential site to study and support young children's spatial reasoning. In this paper we revisit Piaget and his colleagues' theoretical perspective on children's development of geometry concepts and take note of projective geometry in that theory.…

This document lays out a curriculum framework for PK-grade 12 educational programs that is designed to help students achieve data literacy and become statistically literate. The framework and subsequent sections in this book recommend curriculum and implementation strategies covering PK-grade 12 statistics education.

Although basing instruction on a learning trajectory (LT) is often recommended, there is little evidence regarding the premise of a LT approach--that to be maximally meaningful, engaging, and effective, instruction is best presented one LT level beyond a child's present level of thinking. This hypothesis was evaluated for an empirically-validated…

Although basing instruction on a learning trajectory (LT) is often recommended, there is little evidence regarding a premise of a LT approach--that to be maximally meaningful, engaging, and effective, instruction is best presented 1 LT level beyond a child's present level of thinking. We evaluated this hypothesis using an empirically validated LT…

This qualitative, multiple-case study explores the phenomenon of strategy transfer in elementary mathematics classrooms. The participants were three mathematics instructional coaches purposefully selected due to their influence and expertise in mathematics instruction. The mathematics instructional coaches were also elementary teachers. The…

Mathematics education research has repeatedly shown that many elementary teachers and preservice elementary teachers (PSTs) carry negative attitudes and unhealthy beliefs about mathematics (e.g., Bursal & Paznokas, 2006). That research, however, has largely examined PSTs' attitudes and beliefs about mathematics separately, rather than…

Background: Learning trajectories (LTs) in early mathematics curriculum and teaching have received increasing attention (Baroody et al., 2019; Clements, 2007; Clements & Sarama, 2021; Maloney et al., 2014; Sarama & Clements, 2009). For example, LTs were a core construct in the National Research Council (2009) report on early mathematics…

Integrating evidence-based strategies can allow educators to tailor math instruction to empower student learning. This Spotlight will help you investigate which math curricula schools are selecting; review the disconnect between math education theory and the methods teachers actually use; learn how teachers can optimize how they introduce math…

The paper evaluates math performance at four high-need middle schools during a four-year intervention, which was designed to help math teachers diagnose students' areas of need and to design lesson plans responsive to those needs. Before the intervention began, the researchers pre-selected four comparison schools by matching based on achievement…

Lesson study, especially when conducted with support from targeted resources, is often identified as a potentially effective means to support teacher learning. In this study, 80 school-based teams of educators, representing 80 classrooms of third- or fourth-grade students in the US, were randomly assigned to one of four conditions: lesson study…

The use of technology to enhance classroom practices draws attention from numerous educational systems and scientific studies. Rwanda's educational system prioritized ICT-integrated instructions in primary schools in order to enhance the provision of high-quality education from early years. Therefore, this study was undertaken at both public and…

This research aims to analyze the results of studies conducted in Turkey on reasoning skills in mathematics teaching and to reveal what kind of trend there is in this field. Within the scope of this study, databases were searched with the keywords "reasoning"(muhakeme, akil yürütme) and "reasoning skill" (Muhakeme becerisi,…

This study compared the problem-solving abilities of ChatGPT and 58 pre-service teachers (PSTs) in solving a mathematical word problem using various strategies. PSTs were asked to solve a problem individually. Data was collected from PSTs' submitted assignments, and their problem-solving strategies were analyzed. ChatGPT was also given the same…

This article aims to identify the mutual relationship between the awareness of the importance of mathematical competencies for the acquisition of work-related skills and the perceived importance of the latter for performance in future work and successful participation in the labor market. How these issues relate to math anxiety is also explored.…

In many countries around the world, stakeholders engaged in driving education reform policy use teacher professional development to improve the quality of teacher learning, expecting a positive effect on the quality of teaching. Given the high level of expectations for professional development, it is crucial to identify the characteristics of…