The goal of the present work is to extend an online reaction categorization task as a research instrument to a formative assessment tool of students' knowledge organization for organic chemistry reactions. Herein, we report our findings from administering the task with undergraduate students in Organic Chemistry II, at a large, research intensive…

This article seeks to provide researchers and practitioners in laboratory education, particularly those involved in the curriculum design and implementation of teaching laboratories at university level, with a conceptual framework and a working model for an integrated assessment of learning domains, by attending to a more holistic approach to…

Within chemistry education, there are various curricular and pedagogical approaches that aim to improve teaching and learning in chemistry. Efforts to characterize these transformations have primarily focused on student reasoning and performance, and little work has been done to explore student perceptions of curricular and pedagogical…

The purpose of this study was to develop pre-service chemistry teachers' pedagogical content knowledge (PCK) regarding atoms and the periodic table via mentoring. Two pre-service chemistry teachers with different levels of academic achievement participated in the study. The development of the participants' PCK was investigated in terms of the…

A method is adapted for calculating two measures of entropy for gaze transitions to summarize and statistically compare eye-tracking data. A review of related eye-tracking studies sets the context for this approach. We argue that entropy analysis captures rich data that allows for robust statistical comparisons and can be used for more subtle…

''Critical thinking'' has been situated as an important skill or way of thinking in chemistry education. However, despite its perceived importance, there has not been an established consensus definition for chemistry and science education with many resources operating from working definitions. The many definitions obfuscate what ''critical…

This paper reports on how a group of students think when trying to solve a set of thermodynamic revision exercises in the context of collaborative small group conversation at the undergraduate level. The revision exercises involved exploring the relationship between enthalpy and temperature, entropy and temperature, and entropy of a gas under…

Chemistry education research has increasingly considered the role of affect when investigating chemistry learning environments over the past decade. Despite its popularity in educational spheres, mindset has been understudied from a chemistry-specific perspective. Mindset encompasses one's beliefs about the ability to change intelligence with…

A central practice in the discipline of organic chemistry is the ability to solve certain fundamental problems, including predicting reactivity, proposing mechanisms, and designing syntheses. These problems are encountered frequently by both students and practitioners, who need to utilize vast amounts of content knowledge in specific ways to…

Previous research has shown the validity of the Measure of Linked Concepts (MLC) assessment in college introductory chemistry. Herein, we present a novel model of pairing the MLC with a metacognitive exercise aligned with learning objectives in the introductory chemistry courses as an effective tool for instructors to be integrated into…

Informal learning (IL) venues such as museums, zoos, scouting, national parks, and community activities are increasingly recognized for their important role in enhancing the public understanding of science. Many benefits to students who participate in rich informal learning experiences are reported in the literature, including improvements in…

Building reasonable scientific arguments is a fundamental skill students need to participate in scientific discussions. In organic chemistry, students' argumentation and reasoning skills on reaction mechanisms are described as indicators of success. However, students often experience challenges with how to structure their arguments, use scientific…

The purpose of this longitudinal study was to explore the development of pre-service chemistry teachers' pedagogical content knowledge regarding the effect of temperature on reaction rate topic as they took pedagogical content knowledge courses throughout the teacher education program. Pre-service teachers' pedagogical content knowledge was…

This study investigated the development and utilization of argument and representation resources in pre-service science teachers' (PSTs') written and oral arguments over two semesters in an argument-based inquiry environment of General Chemistry Laboratory I and II courses. The study employed a form of mixed methods research that is known as…

Emphasizing stoichiometry appears to be a norm of introductory chemistry courses. In this longitudinal and mixed-methods study, we examined how the emphasis on stoichiometry in assessments of introductory chemistry impacted educational equity and student learning. Using quantitative methods, we identified mole and stoichiometric conversions as two…