This research revealed how the implementation of STEM Project-Based Learning (STEM PBL) in chemistry teaching on colloid system topics with heterogeneous groups of students in terms of habits, hobbies, goals, and gender-biased perceptions. Also, the research described students' attitudes towards STEM PBL, and the linkages between their attitude…

A study on the misconceptions developed or held by teachers related to the two terms valence and valency was undertaken. A total of 48 teachers (26 males and 22 females) teaching the chemistry component of science subject to 14-16-year-old students, in 48 schools affiliated to one district, were randomly selected for the study by taking one…

[superscript 1]H NMR spectroscopy is a molecular characterization technique that is ubiquitously used in research and teaching laboratories alike. Strategic deuteration of molecules is a commonly employed technique in the deconvolution of [superscript 1]H NMR signals. Here this approach is applied in a second-year chemistry course in which…

With the rapid growth in the manufacturing industry and increased urbanization, higher amounts of composite material waste are being produced, causing severe threats to the environment. These environmental concerns, coupled with the fact that undergraduate students typically have minimal experience in research, have initiated the need at the UAE…

This paper reports the findings of the second and the third year of a four year longitudinal empirical research into the modification of 'step-by-step' instructions to practical activities which require one or more steps to be designed by the students. This method had been successfully applied for a short period for 14-15 years old students.…

Content knowledge (CK), pedagogical content knowledge (PCK) and, assessment knowledge (AK) are fundamental types of teachers' knowledge. Second-career, pre-service chemistry teachers leave the industry and return to the Technion to study in the "Views" program to obtain a high school teaching certificate. Their background can potentially…

In recent years teachers' education programs encourage preservice teachers to practice a variety of assessment methods to prepare them to be highly qualified practitioners who are capable in enhancing students' scientific understanding. Formative assessment (FA) -- also known as assessment for learning -- involves the process of seeking and…

Active learning environments have been shown to be beneficial for student learning; however, including such activities can be limited by the class time available. One method that can provide more opportunities for active learning during face-to-face class time is the flipped learning approach. However, studies on the impacts of flipped learning…

1000 Future Scientists (1000FSc) is a university extension project developed at the Department of Chemistry in Federal University of Minas Gerais (UFMG). Conducted by the Higher Education Administrative Technicians and Professors, it presents the university to the community by proposing an engaging experience for elementary and high school…

Learning progressions (LPs) are descriptions of students' growing sophistication in the understanding of a particular construct through a curricular sequence. They are particularly useful for organizing complex constructs for which students do not necessarily connect concepts as taught in different courses. However, they are challenging to…

Core chemistry ideas can be useful tools for explaining biological phenomena, but students often have difficulty understanding these core ideas within general chemistry. Connecting these ideas to biologically relevant situations is even more difficult. These difficulties arise, in part, from a lack of explicit opportunities in relevant courses for…

Beginning in March 2020, instructors and students in educational institutions across the world have had to adapt to new virtual methods of teaching and learning. This study focused on obtaining the student perspective of remote chemistry lecture delivery methods across 13 Fall 2020 courses with students in varied majors of study and stages of…

A fluorometer is a device that measures the spectroscopic properties of fluorescent materials, and fluorometry is used widely in chemistry research settings to characterize fluorescent samples. One of the obstacles faced by undergraduate programs looking to implement fluorometer-based experiments into their laboratory curriculum is the high cost…

Lecture-only chemistry courses without a dedicated laboratory component present a significant challenge for instructors to reinforce course content with hands-on learning experiences. This is especially true for lecture courses in which students are unable to directly visualize and operate instrumentation. Herein, we present an in-class activity…

The aim of this study is to examine prospective science teachers' (PSTs) mental models and meanings for the concept of chemical reaction. For this purpose, this study adopted a phenomenological research design including 48 PSTs. To determine the mental modeling about chemical reactions, PSTs were given an interview card showing the reaction…