The topic of natural selection presents challenges to high school students since it requires understanding of an emergent process, which is a missing schema for most students. Many interventions for teaching natural selection have limited effect in bringing about substantial ontological conceptual change. This study evaluates the effectiveness of…

Scientific literacy reflects an understanding of science as it relates to use of science in real-world contexts. Socioscientific issues (SSIs) are real-world problems that are complex in their acknowledgement of social as well as scientific aspects of the problem and are well-suited to support scientific literacy objectives. Because of their…

As science classrooms become more linguistically diverse, it is becoming increasingly important that pre-service teachers (PSTs) are trained with the skills and knowledge they need to support science learning for all students, especially English Learners. The purpose of this study was to determine how 11 secondary science PSTs' instructional…

This paper examines the roles of multimodality and thematic patterns in the teaching of the particle model of matter. Although the particle model is a fundamental topic in science education, there is no consensus on (1) whether or not the model should be introduced in early grades and (2) how to introduce the model to students for the very first…

Assessments of teacher content knowledge are increasingly designed to provide evidence of the content knowledge needed to carry out the moment-to-moment work of teaching. Often these assessments focus on content knowledge only used in teaching with the goal of testing types of professional content knowledge. In this paper, we argue that while this…

Making direct connections between humanity and the environment is of ever-increasing importance in the context of today's environmental crisis. We used qualitative content analysis of precollege- and college-level introductory environmental science textbook case studies to study how they portray humanity's link to the environment. We assessed case…

Using Revised Bloom's Taxonomy (RBT), this study has examined the intellectual demands of the Senior High School Chemistry Curriculum (SHSCC) in China from a socio-historical perspective. Document analysis was adopted as a research method to analyze knowledge types and cognitive processes, the two dimensions of the cognitive learning objectives in…

This research aims at investigating the effect of Complex Instruction integrated with Team Product (CITP) learning model on students' creative thinking skills, critical thinking skills, metacognitive skills, scientific attitudes, cognitive learning results, and retention. This research used quasi-experimental design with pretest-posttest…

The goal of this research is to provide a rich set of connections between two fields: (i) Nanoscale science and technology (NST) and (ii) topics from a common middle school physics curriculum. NST is emerging as one of the most promising new fields of the 21st century, which is one of the many arguments for including NST topics in secondary…

The glowing discharges of plasma obtained by introducing direct current high voltages between two electrodes in a chamber that contains a low pressure gas produces a spectacular effect that makes it attractive to be used as a laboratory experiment for students. Setting up this experiment is however costly and has crucial safety issues to be…

The talents that neurodiverse individuals bring to STEM fields are being increasingly recognized, thus it is important to ensure neurodiverse youth have opportunities to experience an array of STEM fields as viable career options. Based on the results of a systematic review, this article provides recommendations for how informal STEM learning…

Biology and biotechnology are increasingly ubiquitous and genome research will define the 21st century as the century of biology (Venter & Cohen, 2004). Comprehension of biology is needed to engage with major public policy issues and to make informed decisions (Barton & Uphadyay, 2010; Ladson-Billings, 2003; NRC, 2012; Walker, 2021).…

Today's educational challenges necessitate the creative use of digital technology to adapt an effective pedagogical approach in chemistry teaching. While various visualization tools have been developed to improve visual-spatial skills, previous studies on digital technology interventions provide limited findings and show moderate effects on…

Radiation is ever-present around us, yet there is still a lack of knowledge about radiation among the general population, especially when it comes to students. For this study, we measured the effectiveness of a lesson plan on radiation concepts that focused on ionising radiation and was supported by references and examples from the superhero…

A versatile and portable apparatus was developed to demonstrate exciting visual displays of catalytic phenomena that introduce basic concepts in catalysis, renewable energy, and chemical safety, in order to pique scientific curiosity in a variety of audiences including middle and high school students, undergraduate and graduate students, and the…