Despite the importance of developing elementary science teachers' content knowledge for teaching (CKT), there are limited assessments that have been designed to measure the full breadth of their CKT at scale. Our overall research project addressed this gap by developing an online assessment to measure elementary preservice teachers' CKT about…

The speed of development of biotechnology within agriculture, industry, and medicine has changed our lives, and we need a biotechnological literacy to understand it. This implies that teachers in primary schools need to be biotechnologically literate in order to educate future generations. The aim of this study was to investigate Swedish…

This study examines future secondary physics teachers' knowledge related to the teaching of sound waves, and specifically the topics of sound level and sound intensity. The data is comprised of future teachers' responses to a task in which they had to compose a script for an imaginary dialogue between a teacher and a group of students and to…

The purpose of this study was to determine Turkish primary teacher candidates' conceptual understandings of gases. In this study, a survey approach was used. The sample consisted of 240 primary teacher candidates. As the data collection tool, a questionnaire of six questions consisting of three open-ended and three multiple choice was used. The…

Experience and intuition may help explain everyday phenomena. However, physics concepts cannot be induced directly from them. Learning physics requires an examination of the ideas of scientifically constructed theoretical frameworks, explaining coherently organized physics concepts. This research examined student teachers' physics knowledge in…

In this chapter we envision the science classroom as an authentic scientific community. In this vision, student ideas can influence the trajectory of scientific investigation. Teachers serve as experts and guides, but they also can learn alongside their students. To do this, they need to listen to the students and be able to build on students'…

This study investigates early childhood (EC) student-teachers' species identification skills and their views on the importance of species knowledge. The study used a mixed methods approach, including a species identification test and a questionnaire, and involved 186 Norwegian EC student-teachers. Our results reveal that species knowledge of…

The present study was conducted to analyze the understanding level of the prospective teachers studying in the second grade of elementary mathematics undergraduate program, on the topic of electric charge which is taught in compulsory Physics II. Totally 45 prospective teachers, 36 women and 9 men, have participated the study. The data of the…

Research suggests that students tend to explain the origin of biological traits in terms of needs or purposes and/or as the direct product of genes, rather than as the outcome of evolutionary and developmental processes. We suggest that in order for students to be able to construct scientific explanations, it is important to clearly and explicitly…

The purpose of this study is to reveal preservice science teachers' perceptions related to the sun, star, comet and constellation concepts. The research was carried out by 56 preservice science teachers (4th grade) at Kastamonu University taking astronomy course in 2014-2015 academic year. For data collection open-ended questions that required…

In this paper, we examined teachers' understanding of electrical concepts such as power, current and potential difference based on how these concepts were applied to understand the relative brightness seen in bulbs of different wattage under different connections--series or parallel. From the responses of teachers to a concept question, we…

The purpose of this study was to explore Pre-service Elementary Science Teachers' (PSTs) conceptual understanding of Particulate Nature of Matter (PNM) through a three-tier diagnostic test. Participants were 215 PSTs from Turkey. Data consisted of participants' responses to the Particulate Nature of Matter Test (PNMT). The PNMT consists of…

In an exploratory study, 36 South African physical science teachers' understanding of basic concepts concerning electric and magnetic fields was studied from a perspective of possible concept confusion. Concept confusion is said to occur when features of one concept are incorrectly attributed to a different concept, in the case of this study to…

Knowledge is not simply a collection of facts, principles, and formulas; instead, meaningful knowledge is organized around core concepts that guide peoples' thinking about a subject. Therefore, knowledge organization is recognized as an important component of understanding learning and teaching. In this research, knowledge organization of two…

Chemical representations play an important role in helping learners to understand chemical contents. Thus, dealing with chemical representations is a necessity for learning chemistry, but at the same time, it presents a great challenge to learners. Due to this great challenge, it is not surprising that numerous national and international studies…