A good number of instructional strategies are identified to help students overcome their learning difficulties in the mole concept. However, Ghanaian senior high school students continue to have difficulties in the mole concept. Hence, there was the need to examine the perceived nature of learning the mole concept in the perspectives of male and…

This study determined the effect of misconceptions intervention on students' conceptual change in the concepts of density and floatation in basic science. The moderating effects of gender and school types on students' conceptual change in the selected concepts were also determined. The misconception interventions in this study are hands-on…

This current study presents the effects of interactive computer simulations on students' performance and concept retention in the unit of chemical reactions. Purposive sampling was used to select four schools with a sample population of 320. The Achievement test on chemical reactions was developed, validated, and checked for reliability. The…

The main aim of this study was to explore the effect of 7E instructional model with metacognitive scaffolding and gender on 9th grade students' conceptual understanding of human biology concepts and misconceptions. The research method was a quantitative research method and the research design was quasi-experimental research design with pre-test --…

The development, testing, and classroom implementation of a low-cost, reproducible, desktop sized, highly visual double-pipe heat exchanger are presented. Quantitative measurements with the module reveal its usefulness for demonstrating basic and advanced convective heat transfer theory while worksheet-guided inquiries promote student engagement.…

The Microbiology Concept Inventory is an assessment tool derived from the fundamental statements created by the American Society for Microbiology. This two-tier, multiple-choice question inventory requires students to choose the most correct answer for each question and provide a brief justification of their reasoning. Educators can utilize this…

This study investigated students' attitudes towards physics in Nine Year Basic Education (9YBE) in Rwanda. Data were collected from 380 students from Kayonza and Gasabo Districts using a physics attitudes test. Findings illustrated that more than a quarter of participants felt that learning physics is boring. About 39% think that the subject of…

In this explorative study, a diagnostic test on diffusion and osmosis (DTDO) was developed and used to assess pre-degree students' conceptual understanding and application of diffusion and osmosis in biology. The 25-item DTDO is a two-tier test--adapted from Odom and Barrow's (1995) Diffusion Osmosis Diagnostic Test (DODT)--developed and validated…

This study used a quasi-experimental design to examine the effects of argumentative writing on non-science majors' conceptual understanding and the growth of their writing skills over a semester. To assess gain in conceptual knowledge, tests were given before and after the course; students in the writing group gained significantly more than…

Many undergraduate chemistry students struggle to understand the concept of stereoisomers, molecules that have the same molecular formula and sequence of bonded atoms but are different in how their atoms are oriented in space. Our goal in this study is to improve stereoisomer instruction by getting participants actively involved in the lesson.…

We describe how young students situate themselves with respect to astronomy through an identity framework that features four dimensions: interest, utility value, confidence, and conceptual knowledge. Overall, about 900 Italian students, from 5th to 9th grade (9-14 years old), were involved in the study. We tested our model using confirmatory…

The 21st century student learns and communicates in the virtual world. In order to meet the individual instructional needs of the students, virtual science laboratories should be researched to accomplish the goal. This study evaluated the effectiveness of a virtual chemistry laboratory in enhancing students' conceptual understanding as a…

There is growing interest in the introduction of Einsteinian concepts of space, time, light and gravity across the entire school curriculum. We have developed an educational programme named 'Einstein-First', which focuses on teaching Einsteinian concepts by using simple models and analogies. To test the effectiveness of these models and analogies…

Studies have shown the potential of explainer videos. An alternative is a written explanation, as found in science textbooks. Prior research suggests that instructional explanations sometimes lead to the belief that a topic has been fully understood, even though that is, not the case. This 'illusion of understanding' may be affected by the medium…

There is a knowledge gap in best practices for incorporating performance arts into science instructions. The study focused on the design and implementation of the Performance Arts Enhanced 3-Stage Instructional Model (PAEIM), which incorporated drama, dance and music. The PAEIM was implemented in mixed factorial quasi-experimental research during…