The motion of a cylindrically or spherically symmetric body on an accelerated treadmill, inclined of an angle [theta] with respect to the horizontal, is described by means of Newtonian mechanics. By assuming that the conveyor belt has an acceleration "a[subscript O][superscript ']", not necessarily constant, and that the body rolls on…

Multiple choice tests are widely applied to assess students' knowledge in science education. This study aimed at assessing the validity and reliability of Science Multiple-choice Test in Malaysia. The items for this test were formulated by the researcher together with a panel of science teachers and the head of the science department with close…

Studies have shown that inadequate definitions of scientific concepts could complicate the learning of science and could prevent students from understanding the definitions of scientific concepts. The article provides a framework for defining scientific concepts in primary, secondary, and university education by proposing teachers draw attention…

This manuscript is meant to support secondary school teachers in their constant effort to find novel ways to engage students. Adolescents seem particularly stimulated by time-travelling scenarios, like the famous "wormhole billiard ball paradox" proposed by J. Polchinski in 1990, which are usually solved through closed time-like curves…

This dissertation is an extended prescription for the inclusion of social justice in high school biology (HSB) curricula. Chapter 1 is context: a review of social injustice (mainly racism) in the US, and the specious scientific justifications for it. Chapter 2 explores how three veteran teachers introduce social justice in HSB classes. A…

The purpose of this study is to enhance online biology learning with mobile augmented reality (AR) applications and to assess the impact of mobile AR applications on students' motivation, self-efficacy, and attitudes toward biology learning. Students were interviewed, and the usefulness of mobile AR applications was evaluated using a…

The purpose of the study was to investigate the relationship between high school students' understandings of aspects about nature of science (NOS) and their argumentation skills, particularly whether informed conceptions of NOS contribute to better argumentation skills. Participants, a total of 125 Grade 10 students, responded to an open-ended…

This study focused on addressing underperformance in chemistry in Anglophone West African countries. The main purpose of the study was to determine if factors such as gender, school location and ownership impact students' perception of the difficulty of chemistry concepts and to suggest how these difficult concepts can be made easy to learn from…

Background: In the field of science education, the importance of assessment in students' learning process has been recognized. Understanding of how students perceive science assessment and feedback may be an important issue that science education researchers need to pay attention to in order to achieve meaningful learning. Purpose: The purpose of…

Some research works have showed that Ghanaian teachers, teaching chemistry in the senior high school, have conceptual difficulties in organic chemistry. This research explored the factors contributing to teacher's conceptual difficulties on teaching organic chemistry to high school students. Through explanatory sequential mixed methods design…

Science process skills are the backbone of science, and innovations in this field. It is critical to inculcate such skills among learners at their early stages of learning science. This study reports on how using the mobile phone WhatsApp-supported instructional resources resulted in improvement in students' science process skills in chemistry, in…

This integrated STEM activity on the design of a vertical farming system has biology as the lead discipline and relates to the concept of photosynthesis. Students investigated the optimal design of vertical farms that will deliver appropriate amounts of water, sunlight and carbon dioxide to plants such that there will be optimal yield. Through…

The problem that was addressed in this study was that the academic needs of English Language Learners (ELLs) were not being met in biology classes in high schools in the local district because teachers were not consistently facilitating instruction using the required strategies of student discourse and collaborative structures. The purpose of this…

Laboratory research experiences can be an important part of the training process for STEM professionals, but barriers exist that can prevent broad access to these opportunities. Virtual Research Group (VRG) modules, which use data curated from the scientific literature to simulate aspects of the research process, provide a scalable alternative to…

This research with middle school students from Kentucky (KY) and Nevada (NV) provides a snapshot of students' spatial-scientific understandings as we explored how well students understand lunar-related content, both spatially and scientifically, after receiving instruction with similar curricular Earth-Space content. Utilizing a lens of spatial…