To support science teachers in learning how to engage in ambitious teaching practices, teacher educators, professional development facilitators, and researchers need to develop a nuanced understanding of the pedagogical content knowledge (PCK) that science teachers access and use in their daily work. Despite the consensus on the importance of…

This comparative case study examined how graduate students in two student affairs preparation programs were socialized to constructions of professionalism. One program regularly conveyed that professionalism was reflected via formal communication and dress, and through demonstrating professional competency as defined by ACPA and NASPA. The second…

The aim of this study was to investigate the effect of using dynamic geometry software (GeoGebra) on the eighth-grade students' conceptual understanding and the retention of learning regarding linear equations and slope. In this study, a quasi-experimental design with pre-test, post-test and delayed post-test was employed. This study was conducted…

Traditionally teachers display the learning outline at the beginning and conclusions at the end of didactic teaching sessions, and students may find it difficult to understand how teaching activities relate to learning objectives and what they should study for assessments. We introduced the "concept-sharing approach" in our…

Regarding 21st-century learning, scientific literacy is an important competency which must be owned by students. Nevertheless, scientific literacy of Indonesian students has been recognized in low level. This study aimed to describe students' scientific literacy in Bryophyta topic using problem-based learning. This Classroom Action Research (CAR)…

The purpose of this research is to improve students' understanding and the ability to perform scientific work through creative problem-solving learning with the open-ended experiment approach to the separation of mixtures material using online learning. The study used a quasi-experimental method with the nonequivalent pretest-posttest control…

Mathematical generalization can take on different forms and be built upon different types of reasoning. Having utilized data from a series of task-based interviews, this study examined connections between empirical and structural reasoning as preservice mathematics teachers solved problems designed to engage them in constructing and generalizing…

The purpose of this study is to determine the mental models of primary school students about the concept of environment. The research group consisted of 400 students, 219 girls and 181 boys, enrolling to the 3rd and 4th grade in a primary school located in Istanbul. The students were asked to draw the environment and explain the items they draw.…

Few would argue the value of learning progressions in providing useful structures for selecting and sequencing in a developmental manner the key components of an 'intended curriculum'. Yet, there are pervading issues around what is meant by a developmental sequence, along with how they are used to assess what learners know, understand and can do.…

Children have mathematical understanding beginning from the early years of life. Mathematics education during these years has a significant effect on children's future lives. Play is a significant issue in children's lives and can be used as a way for teaching and learning. It presents a rich learning environment. In this study, therefore, we…

Best Evidence Science Teaching (BEST) is a large online collection of resources developed for effective teaching of difficult ideas in science, currently for use in secondary schools. The unique selling point of BEST is that it enables teachers to draw on the best research evidence when teaching a wide range of topics in the science curriculum.…

Experiments using smartphones allow for teaching physics concepts in a fun and engaging way and including interdisciplinary approaches. The exploratory character of the experimental activities, along with the smartphones' embedded technologies, when applied in the high school classroom, also has the potential to awake the students' intrinsic…

Even though the concept of species is central in biology, the history of species concept and the existence of different species concepts are rarely discussed in biology classroom. This is unfortunate, as teachers could use the plurality of species concepts to enrich discussion in the classroom. Therefore, knowing the students' perception of…

Experimental teaching is essential for a good understanding of science, especially on Physics. Practical activities play an important role for engaging students with science, mainly when they interact directly with equipment, collect experimental data with computers and/or use interactive software for data analysis. In this work, we present the…

The real time PCR (qPCR) method provides a powerful method to assess levels of particular species of DNA. When combined with reverse transcription (RT-qPCR) it is the predominate technique to measure expression of gene transcripts. While this approach is very powerful, particular care must be taken in the design of the primers to facilitate…