Intellectual demands of learning outcomes in the intended curriculum have always been a concern across the field of science education. In particular, the representation of those learning outcomes stipulated by the intended curriculum in science textbooks has become a big issue for both science curriculum studies and science teaching practice. To…

This study investigated the effects of multimedia learning and visual design in a 6th grade science textbook on students' studying processes. This was accomplished by using eye tracking technology and by applying multimedia learning design and visual design principles to science textbooks. Eye tracking based testing was employed to evaluate the…

Given the importance of cultivating scientific literate societies, the integration of scientific inquiry into school curriculum is key to contemporary science education. It is apparent that textbooks have been an accessible source of science information for teachers and students since the growth of public K-12 schooling worldwide. Textbooks are…

Concepts of molecular biology and genetics are difficult for many biology undergraduate students to master yet are crucial for deep understanding of how life works. By asking students to draw their ideas, we attempted to uncover the mental models about genes and gene expression held by biology students (n = 23) and experts (n = 18) using…

The phenomenon of industrial melanism (IM) became widely acknowledged as a well-documented example of natural selection largely as a result of H.B.D. Kettlewell's pioneering research on the subject in the early 1950s. It was quickly picked up by American biology textbooks starting in the early 1960s and became ubiquitous throughout the 1970s,…

Homeostasis is a core concept necessary for understanding the many regulatory mechanisms in physiology. Claude Bernard originally proposed the concept of the constancy of the "milieu interieur," but his discussion was rather abstract. Walter Cannon introduced the term "homeostasis" and expanded Bernard's notion of…

Despite inquiry-based teaching was introduced and encouraged as significant tool to develop students' scientific knowledge and habits of mind, its implementation has not been well established in science classrooms in Korea. To understand the challenges and difficulties of the practice of inquiry practical work, this study particularly aims to…

Modelling is a significant aspect of doing physics and it is important how this activity is taught. This paper focuses on the explicit or implicit messages about modelling conveyed to the student in the treatments of phase transitions in statistical mechanics textbooks at beginning graduate level. Five textbooks from the 1930s to the present are…

This study explores the extent to which the term "sex hormone" is used in science textbooks, and whether the use of the term "sex hormone" is associated with pre-empirical concepts of sex dualism, in particular the misconceptions that these so-called "sex hormones" are sex specific and restricted to sex-related physiological functioning. We found…

Textbooks for GCE Advanced Level Biology have provided over-simplified and inaccurate accounts of Charles Darwin's contribution to the study of evolution over a period of many decades. They have credited him with field skills and insight that he did not possess, and repeated several historical inaccuracies. Darwin's strength was as a synthesiser…

The purpose of this study was to determine to what extent the breakdown of Newtonian classical physics and the new concepts of modern physics have changed the treatment of elementary physics in undergraduate college textbooks and to evaluate implications of the change. Forty-three textbooks published between 1910 and 1966 were examined and placed…

Presents a problem on nonstandard concentrations at nonstandard temperature modeled after an example problem on the Nernst equation found in a high school chemistry textbook. Discusses why the problem is incorrect, offering a second problem which is correctly solved. Implications for teaching the Nernst equation are considered. (JN)

Focuses attention on the almost universal practice of discussing all metals as malleable. The author points out that some are brittle and then he presents the variation in chemical properties of metals. (SA)

Reviews the conventional interpretation of the etiology of Down syndrome, summarizing recent data that do not support this interpretation. Also surveys the way in which clinical, cytogenic, and statistical findings related to the syndrome are presented in 27 major genetics textbooks published since 1975. (Author/JN)

Three high school biology textbooks were analyzed to determine possible sources of misconceptions and related learning problems associated with genetics. Misconceptions were examined in these categories: conceptual organization; conceptual relations; use of terminology; and mathematical elements. Implications for instruction related to each…