'A lack of prior knowledge in the other discipline' is often given by geoscience instructors to explain why students struggle to apply knowledge from other disciplines to the Earth. We examine this assumption by considering the disciplinary crossing of buoyancy (physics) to isostasy (geoscience). We investigate the teachers' perspective through…

This study investigates the alignment between curriculum standards and textbooks, based on a standards-based science education context. The analysis sample includes the High School Biology Curriculum Standards and five editions of biology textbooks in China. Porter's alignment model is used to construct a two-dimensional (content areas and…

Integrated science is a ubiquitous school subject that is found in primary and middle-school levels around the world. Being a hybrid subject comprising several science disciplines, it poses many challenges to teachers as they are obliged to teach beyond their disciplinary comfort zones. In addition, this subject is prone to a lack of coherence,…

Formal understanding of the nature of science (NOS) has been considered to be a major contributor to nurturing students' scientific literacy. In China, this view has been endorsed in the new standard for high school physics curriculum, which has guided the development of the new generation physics textbooks. Following the analytical framework…

The gender gap in post-compulsory science education remains a key concern for educators in many countries. Over the last two decades significant effort has been placed in a number of initiatives aimed not only at raising the profile of science in schools, but also at widening female participation. Despite these initiatives, the rate of female…

Pedagogical content knowledge of science teachers includes knowledge of representational forms, such as visual displays. Past research has provided a general means to evaluate pictures, but is not fine-grained on features internal to pictures. Furthermore, many existing picture function typologies consider pictures as subservient to text, though…

The purpose of this study was to investigate if science textbooks prepare students for the twenty-first-century and if and how science and religion are depicted in science textbooks in Arab countries where religion, especially Islam, plays a role in the lives of individuals and possibly in the understandings of science. The analysis was conducted…

There are many studies related to gender representation in science textbooks. However, less attention has been paid to the ways in which physics textbooks portray women: how women are situated in occupations or works, laboratory activities, and achievements, or to their characters in relation to women's stuff. This textual analysis aims to fill…

This study aims to investigate textbook tasks in the Norwegian school subject Natural sciences and the views of science that the tasks mediate to the pupils. Natural science is an interdisciplinary subject taught in Years 1-11 that includes chemistry, physics, biology and parts of the geosciences. We conducted a qualitative content analysis of…

The present study explores how in-service secondary education Greek biology teachers understand aspects of the concept of ecosystem under the assumption that the ecosystem is an ill-defined concept. If it is to be considered a holistic entity, the ecosystem acquires its definitional features within the ecological field of systems ecology, which…

In this study, an analysis of the structure of scientific explanations included in physics textbooks of upper secondary schools in Greece was completed. In scientific explanations for specific phenomena found in the sample textbooks, the "explanandum" is a logical consequence of the "explanans," which in all cases include at…

This article reports on an analysis and comparison of three South African Grade 9 (13-14 years) Natural Sciences textbooks for the representation of nature of science (NOS). The analysis was framed by an analytical tool developed and validated by Abd-El-Khalick and a team of researchers in a large-scale study on the high school textbooks in the…

Science education strives to increase interest in science and facilitate active citizenship. Thus, the aspects of personal and societal relevance are increasingly emphasised in science curricula. Still, little is known about how teachers choose content for their teaching, although their choices translate curricula to teaching practice. We explored…

Given the importance of explanation in science texts for children, this research explored Coh-Metrix as a tool for rapidly determining the presence of explanations in science trade books. Variables from Coh-Metrix specifically addressing cause ("causal content," "causal cohesion," and "positive causal connectives")…

A critical component of science and math education is reasoning with data. Science textbooks are instructional tools that provide opportunities for learning science content (e.g. facts about force and motion) and process skills (e.g. data recording) that support and augment reasoning with data. In addition, the construction and design of textbooks…