In this study, I analyzed and compared definitions of special quadrilaterals presented in the US and Turkish secondary school mathematics textbooks. To this end, seven textbooks from each country were examined based on the following features of mathematical definitions: form of presentation and mathematical correctness, minimality, the nature of…

Covariational reasoning is a cognitive activity that attends to two or more varying quantities and how their changes are related to each other. Previous studies indicate that covariational reasoning seems to have levels. Content analysis was used to examine the pedagogy and development of covariational reasoning levels in the sections that…

This study analyzed the methods used to teach the multiplication of fractions in Turkish and American textbooks. Two Turkish textbooks and two American textbooks, "Everyday Mathematics" (EM) and "Connected Mathematics 3" (CM), were analyzed. The analyses focused on the content and the nature of the mathematical problems…

This study analyzed how the earliest teaching and learning of probability was organized in Singapore, the US, and Indonesia through an analysis of textbook as an intended mathematics curriculum. An analytical framework was developed comprising four perspectives: representational forms, cognitive demand levels, contextual features, and organization…

This study, focusing on inverse relations, examines how representative U.S. and Chinese elementary textbooks may provide opportunities to learn fundamental mathematical ideas. Findings from this study indicate that both of the U.S. textbook series (grades K-6) in comparison to the Chinese textbook samples (grades 1-6), presented more instances of…

Recently a team of third- and fourth-grade teachers tested instructional ideas on the topic of division with remainders (DWR) using lesson study. The Common Core State Standards for Mathematics give little attention to the concept of the remainder, specifying only that students are to solve problems for which remainders must be interpreted (NGA…

This paper presents a comparative analysis investigating how cultural values are represented in two sets of widely used Chinese as a second language (CSL) textbooks published in mainland China (New Practical Chinese Reader, NPCR) and the US (Integrated Chinese, IC) respectively. Using an integrated critical social semiotic approach, we examined…

Many geoscience phenomena cannot be perceived at human temporal or spatial scales. As a consequence, we can only understand many processes that drive geological phenomena through analogical reasoning. Building deep conceptual understanding requires instruction that activates the appropriate source analogs and allows students to build useful…

Villainification is the process of creating single actors as the faces of systemic harm, with those hyperindividualized villains losing their ordinary characteristics. Like heroification, there is a simplified portrayal of historical actors, but villainification has particularly harmful consequences. We suggest that villainification obscures the…

Educators everywhere consider how best to prepare students with the knowledge, skills, attitudes and behaviors to be informed, engaged, and caring 21st century citizens. This article provides a report of an ethnographic transnational field study examining how 30 educators located in Costa Rica, Myanmar, and the United States, conceive of…

This study examined the role of history education for nation building in Ethiopia, Germany Rwanda, South Africa, Switzerland, and USA using a comparative research method. Student textbooks and syllabi were the main data sources. Document review was the principal data-gathering tool and the data was analysed qualitatively. Findings revealed that…

Numerous research and scholarly articles have been written on the Korean War. Yet in many K-12 history classrooms, the war and its legacy are still "forgotten" and are only addressed with a paragraph or two in a textbook. The Korean War Legacy and World History Digital Education foundations are changing this situation by honoring…

Young people around the world are calling ever more urgently on policymakers to address today's global challenges of sustainability, structural inequality and social justice. So it is little surprise that learning in a global society, understanding sustainable development and being active global citizens are increasingly popular themes for…

The OECD Future of Education and Skills 2030 (E2030) project's overall goal is that of looking to the future in terms of how school curricula should evolve given the technological advances and other changes that societies are now facing. Towards that end, the E2030 project centres on the idea that education needs to equip students with the…

This paper reports on 2 studies that examine how mathematical problem posing is integrated in Chinese and US elementary mathematics textbooks. Study 1 involved a historical analysis of the problem-posing (PP) tasks in 3 editions of the most widely used elementary mathematics textbook series published by People's Education Press in China over 3…