The content of organic chemistry is closely related to our everyday life, to nature, and to the human body. Illustrations play a big role in the acquisition of the course material, especially if those help to make the interpretation of the textual content easier. Hybrid illustrations are made up of combinations of realistic images (photographs,…

Acid-base chemistry is a foundational concept for organic chemistry, and the complexities in teaching and learning acid-base chemistry are well documented. This study aimed to investigate post-secondary instructors' pedagogical content knowledge (PCK) for teaching acid-base chemistry in an organic chemistry context. Two groups of three graduate…

Collaboration enhances conceptual learning with multiple representations. However, learning with multiple representations also involves perceptual learning processes. These often-overlooked learning processes are the target of perceptual trainings, which expose students to short nonverbal tasks so that students can induce visual patterns across…

Design-based learning is considered a powerful way to help students apply and develop understanding of science concepts, but research has shown that the success of this approach is not a given. Examining students' understanding of science concepts in various design-based learning contexts has thus continued to be an important field of research. To…

This research investigates the effect of the context-based approach (CBA) 'Relating-Experiencing-ApplyingCooperating- Transferring' (REACT) strategy supported with crossword puzzles on achieving the associate degree students in the chemistry laboratory course on the topic of acid-base titrations. A crossword puzzle game and four contexts related…

Understanding the nature of science (NOS) is an important goal of science education, and textbooks are a key factor in shaping students' conceptions of NOS. In this study, we analysed NOS represented in middle school chemistry textbooks in the Chinese mainland. The selected materials were three most commonly adopted textbook series, which were…

Student perceptions toward homework assigned in general chemistry courses was investigated in this study. The study participants were required to complete homework assignments using two different online systems, ALEKS (adaptive-responsive system) and Sapling (traditional-responsive system). An online survey investigating their general perceptions…

This paper reports the quantification of Ca, Mg, and Fe as micronutrients in different vegetables (spinach, sugar beets, and carrots) from raw and processed samples. Simple extraction procedures, titrations, and spectrophotometric analysis were used to determine the amounts of micronutrients before and after cooking. From the obtained results, an…

The Department of Chemistry and Biochemistry at St. Mary's College of Maryland has scaffolded collaboration skills throughout the Biochemistry curriculum and developed several assessment tools to evaluate these skills. Biochemistry I and II have used team contracts at the beginning of extensive team projects where students identify their…

Biosphere contamination is a current environmental and social issue that must be included in the school programme. It is essential that students recognise their responsibility, and be knowledgeable about the generation and reduction of environmental pollution. Dyes are usually used in school activities and discharged into household effluents,…

Pedagogical content knowledge, PCK, a concept in teacher education requires additional focus and attention by pre-tertiary teachers to improve teaching and learning and learners' performance. The study adopted PCK model developed by Magnusson et al. (1999) to investigate senior high school (SHS) chemistry teachers PCK in teaching the concept of…

Each year, in middle and high school classrooms, secondary science teachers introduce their students to the periodic table of elements (herein the periodic table). According to the Next Generation Science Standards (NGSS Lead States, 2013), one of the performance expectations states that high school students should be able to, "Use the…

In the context of inquiry-based learning, it is widely acknowledged that fostering teachers' skills in formative assessment is vital for enhancing student learning. This study examined the impact of a formative assessment-based inquiry model on science student understanding and explanations. A quasi-experimental approach that adopts the design of…

Eye tracking technology enables the visualisation of a problem solver's eye movement while working on a problem. The eye movement of experts has been used to draw attention to expert problem solving processes in a bid to teach procedural skills to learners. Such affordances appear as eye movement modelling examples (EMME) in the literature. This…

This case study is an attempt to investigate how computer simulations can contribute to engaging students' active participation in knowledge creation through chemistry learning. Empirical data were collected through interviews, a survey, and a test on secondary school student performance in Rwanda. The findings reveal four main forms of…