The aim of this study was to determine the effects of cooperative learning and models on the conceptual understanding of the chemical reactions. The sample of study was comprised of 71 preservice science teachers from the first grade of science teacher education program. Quasi-experimental method with pre-and post-test of quantitative research was…

This article focuses on students' discursive moves and reasoning practices while engaged in a task that requires making explanatory links between sickle cell disease and malaria. Both diseases pertain to key areas of the biology curriculum, namely, genetic variability and natural selection, and are connected to the theory of evolution of living…

The Human Orrery is a representation of the Solar System at a human scale, on which positions of planets over time are symbolized by different discs. Learners can then walk along the orbits of the planets with the right pace. This pedagogical tool uses the principles of enacted cognition to promote a better understanding of the scientific laws of…

Investigating real-world phenomena in a playful, exploratory setting is a natural process for young children. Teachers can capitalize on children's curiosity to foster their understanding of science ideas and their engagement in science practices, such as predicting, experimenting, observing, comparing, and contrasting. Force and motion…

Through the experiments described in this article, students become acquainted with the principles behind ternary liquid-liquid systems and/or Aqueous Two-Phase Systems (ATPS), and their characterization by the determination of the binodal curve, tie-lines, tie-line lengths and critical point, as well as in applying the non-random two-liquid model…

Formative assessment is a teaching method that helps to determine the prior knowledge of students, schedule the course plan accordingly, give it the final shape based on the feedback received from students, and encourage conceptual learning. The aim of this study is to introduce the "annotated student drawings" as one of the common…

The insufficiency of teachers who teach integrative science, technology, engineering and mathematics (STEM) courses is a major challenge facing science education today. Many teachers lack adequate expertise to combine disciplines and choose effective instructional approaches. This study examines how and to what extent teachers might succeed in…

The recent discovery and ongoing detection of Einstein's predicted gravitational waves offers an exciting opportunity for engaging the general public in science. In order to reach a wide range of people with different science-art identities, levels of physics expertise, age, and gender, the "Celebrating Einstein" festival merges science,…

This study focused on the development and validation of a three-tier multiple-choice diagnostic instrument about the ecological footprint. Each question in the three-tier test comprised by; (a) the content tier, assessing content knowledge; (b) the reason tier, assessing explanatory knowledge; and (c) the confidence tier that differentiates lack…

Understanding student ideas in large-enrollment biology courses can be challenging, because easy-to-administer multiple-choice questions frequently do not fully capture the diversity of student ideas. As part of the Automated Analysis of Constructed Responses (AACR) project, we designed a question prompting students to describe the possible…

For some elementary science teachers, a unit on land and water brings nightmares of dirt and water all over the room. Several Earth science "kits" contain hands-on exercises that allow the students to "get messy" as they manipulate materials; however, these lessons may lack the necessary opportunities for students to ask unique…

There is an urgent need to strengthen undergraduate science students' epistemic knowledge, which requires having the scientists "qua" teachers on board. The divide between scientists' perceptions of science and the perceptions held by those who study science is in this context problematic. Even so, this remains a sorely understudied…

Science, Technology, Engineering, and Mathematics (STEM) education, integrated STEM education, and integrative STEM education are all actively pursued teaching approaches currently being highlighted in the United States and abroad (Sanders, 2009; Semali & Mehta, 2012), and in recent years the increase in interest, engagement, and pressure to…

This study consists of a categorisation of the vocabulary of chemistry, focusing on the terminological difficulties students face when learning this subject. Therefore, this classification intends to provide chemistry teachers an awareness of the language barriers students must overcome in their understanding of this scientific discipline. Two…

The study assessed the effect of concept map on achievement and classroom management of 7th grade students. Three elementary schools were purposively selected in Silchar town of Assam, India. The 7th grade students (n = 36), of 'School I' was assigned to lecture cum discussion approach, 34, students (n = 34) of 'School II' was assigned to Spider…