In this study, it was aimed to examine the visual content and expressions in the texts in the "Cell Divisions" unit in the 10th Grade Biology textbook of the Ministry of National Education, Secondary Science High School, taught in the 2022-2023 academic year, in terms of scientific content. The data sources of the research, in which the…

The purpose of this research is to examine assessment and evaluation activities of secondary school 9th and 10th grade physics textbooks in Turkey according to the revised Bloom Taxonomy and PISA science literacy competence levels. In this study document review, a qualitative research method was used. Within the scope of the study, assessment…

For students in biology, chemistry, or environmental science, diatoms offer excellent insight into watershed health and human impact on the environment. Diatoms are found globally in virtually every habitat that has sunlight and moisture, including polar seas, tropical streams, and on moist soils and mosses. Studying diatoms as biological…

This study presents the results of an analysis of high school chemistry textbooks and teacher-generated questions about gas laws. The materials that were analyzed consisted of 456 questions about gas laws found in seven grade 10 chemistry textbooks and 264 teacher-generated examination questions prepared by seven chemistry teachers from three…

This study compared modeling skills and knowledge structures of four groups as seen in their understanding of air quality. The four groups were: experts (atmospheric scientists), intermediates (upper-level graduate students in a different field), advanced novices (talented 11th and 12th graders), and novices (10th graders). It was found that when…

This paper is a qualitative, practice based study describing the use of the Focus-Action-Reflection (FAR) Guide (Harrison & Treagust, 2000) to address the shortcomings of a pedagogical analogical model in Year 10 Science. The aim of this paper is to present my experience of the FAR Guide in relation to an analogical model that gave rise to…

In the study of science topics especially in physics students are expected to move between different modes of representation when dealing with a particular concept as any science concept can be represented in several different modes. The difficulty for students is that they are often unable to move between these multi-modal representations and…

A study of 1,176 Taiwanese 10th graders showed that they tend to perceive their learning environments as less constructivist than they preferred. Those with more constructivist than empiricist beliefs about science felt that environments did not provide sufficient opportunities for social negotiation, integration of prior knowledge, and meaningful…

This paper illustrates one cycle of research development, implementation, and evaluation in an ongoing long-term improvement activity for the 10th-grade chemistry curriculum in Israel. The incorporation of student modes of thinking (correct and incorrect) about central chemistry concepts into the curriculum and an evaluation of new curriculum are…

Three psychometric methods for validating learning hierarchies were applied to one data set derived from student responses (N=269) to items representing skills in a hypothesized hierarchy for the mole concept. The hierarchy derived from the analysis was supported by a test for transfer of learning from subordinate to superordinate skills.…

The study presents the frequencies of students' conceptions of growth and cell division before and after one hour of instruction. The investigation supplements qualitative results by directing attention to those conceptions which might occur most frequently to students: teachers can then concentrate their preparation on practical requirements. A…

Evaluated the effects of cooperative learning on students' (n=36) verbal interaction patterns and achievement in a conceptual change instructional model in secondary science. It was found that students using cooperative-learning strategies showed greater achievement gains and made greater use of specific verbal patterns believed to be related to…

Genetic engineering is now an integral part of many high school textbooks but little work has been done to assess whether it is being properly addressed. A checklist with 19 items was used to analyze how genetic engineering is presented in biology textbooks commonly used in Spanish high schools, including the content, its relationship with…

Much of the focus in science education has been on the theoretical constructs and practical implications of conceptual change. History of science, cognitive theory, and alternative conceptions have been used as backdrops for the study of the child's conceptual movement away from naive beliefs about scientific phenomena. In this study, conceptual…

Investigates the conceptual-change process in grade 10 students during a computer-supported physics unit. Finds that many students vacillated between alternative and scientific conceptions from one context to another during instruction, and those few students who did exhibit context-independent and stable conceptual change appeared able to accept…