Science students are increasingly challenged to use technical language related to the topics that they are studying, and therefore, science teachers benefit from knowing which tools are effective to support students in learning to use new terms. This study examined the impact of using one such tool--sentences frames--to teach science vocabulary,…

The present study was an attempt to investigate the effect of Problem-Based Learning (PBL), Predict, Observe, Explain (POE), and the combination of both (PBLPOE) on students' critical thinking skills and scientific attitudes in Biology. A pretest-posttest nonequivalent control group design was employed in this study and 132 tenth-grade students…

The identification of students' mental models is crucial in understanding their knowledge of scientific concepts. This research aimed to develop a Mental Models Representation Instrument on Newton's Laws (MeMoRI-NL). The ADDIE (Analyzing, Designing, Developing, Implementing and Evaluating) model was used as a research method. The sample consisted…

A common problem in many schools is the lack of equipment and materials in their science laboratories due to both limited budget available to the school and high maintenance cost of the lab. The latest technological advancements provide great opportunities for schools to go over the budget and cost issues by using 3D virtual learning environments…

Although saliva has commonly been used to teach about digestion by organisms, the phenomenon of digestion is actually caused by enzymes as catalytic substances. This activity explores the hydrolysis of starch by "a"-amylase in cleaning materials as well as a comparison with the similar reaction using human saliva. The fact that the…

Nuclear energy produces low carbon, safe and reliable electricity so is it now time for the UK to invest in this proven technology or are the misplaced perceptions regarding its safety, cost and the quantities of radioactive waste produced causing us to overlook nuclear as a major component of our electricity mix? This paper discusses these issues…

The study was undertaken to assess the student's perception while learning class 9 biology through Problem-Based Learning (PBL) method. Two hundred students of Government School of Chandigarh affiliated to Central Board of Secondary Education (CBSE), New Delhi, India, constituted the sample for the study. Hundred students were randomly assigned to…

Moroccan students encounter major difficulties in the acquisition of electric phenomena. The phenomenon of resonance is not an exception. This phenomenon is ranked among the most difficult and important phenomena of wave physics. In this article, we simulated the resonance phenomenon via the PSPICE simulator. The proposed simulation allows…

Randy Olson's book, "Don't Be Such a Scientist: Talking Substance in an Age of Style", was used to supplement a senior seminar in nanomaterials. While students learned about the chemistry behind useful properties of nanomaterials, they also analyzed how nanomaterials applications are presented to the public through advertising, science…

The finding that biodiversity is a concept with different context-specific meanings has implications for its conceptual development when students are required to apply it in a diversity of contexts. An approach that may overcome these implications is that students learn to recontextualise one meaning to another. Since no empirical studies were…

Context-based learning aims to make learning more meaningful by raising meaningful problems. However, these types of problems often require reflection and thinking processes that are more complex and thus more difficult for students, putting high demands on students' problem-solving capabilities. In this paper, students' approaches when solving…

We present an educational game for teaching physics, "Spies." The game is based on the popular boardgame "Codenames." It is useful as a didactic tool to promote and improve student engagement. "Spies" is practical, fast and requires very little physical resources, which makes it ideal for high school teaching and…

Candy, an everyday treat, is a convenient theme for teaching chemistry. Making candy incorporates solution concentration, colligative properties, and phase transformations while flavoring and color reflect synthesis or extraction. In this article, a nonscience major laboratory course on candy chemistry is presented. The course combines laboratory…

This study examines the classroom talk about models and modelling of two secondary science teachers implementing a model-based inquiry instructional unit. The goal was to better understand the opportunities for explicit metamodeling talk in the science classroom. The findings revealed the ways in which they used language to frame the modelling…

In genetics education, symbols are used for alleles to visualize them and to explain probabilities of progeny and inheritance paradigms. In this study, we identified symbol systems used in genetics textbooks and the justifications provided for changes in the symbol systems. Moreover, we wanted to understand how students justify the use of…