This article presents an investigation into the environmental impacts of plastic waste and discusses the importance of cradle-to-cradle design thinking. An example lesson is provided that aims to focus students' attention on the influences of design decisions and conceptualizes design as an iterative process, whereas previous solutions may address…

Multiple chemistry education research studies at the secondary level have characterized students' difficulties regarding a conceptual understanding of the quantum model of the atom. This research explores undergraduate students' interpretations of multiple representations of the atom. Semistructured interviews were conducted with first-year…

When characterizing students' item-solving strategies, methods such as interviews and think-aloud protocols are often used. However, these measures provide limited information about sub-or preconscious signals and cognitive processes that also affect students' item-solving strategies and abilities. A growing number of researchers in chemical…

BYOL (Bring Your Own Lime), a novel laboratory experiment, is introduced in this paper. Students are encouraged to bring affordable household and grocery store chemicals into the classroom. The Bring Your Own Chemical (BYOC) concept demonstrates to students that food and household products are chemicals too. Citruses are often used to highlight…

A method for using electronic structure calculations to predict the standard molar enthalpy of combustion for hydrocarbons is presented. In this approach, simple geometry optimizations can be used to accurately compute the enthalpy of combustion within 3% of the experimental value using Hartree-Fock, MP2, or virtually any functional in density…

The purpose of this research was to understand the misconception level of 10th grade students in Yogyakarta province of Indonesia in understanding the concept of ionic and covalent bonds. The ionic and covalent bonds were chosen based on the need assessment on chemistry teachers. This study was included qualitative descriptive research which…

Gay-Lussac's law states that the pressure of an ideal gas is directly proportional to its absolute temperature if the volume is constant. Students observe this relationship by taking measurements on the pressure of gas in a flask or metal sphere at different temperatures and then extrapolate the data to estimate absolute zero. In our college…

Through problem solving especially in the chemistry courses, individuals are required to solve difference types of problems both in traditional and innovative ways, and to reveal different points of views. Both correct results and correct units are achieved through the conversion factors. The fact that the teacher candidates approach problem…

Many teachers do not notice, or do not understand, the chemistry going on in and around their homes and hence do not point it out to their students. Thus they miss out on an important motivating experience. This article gives a few random examples, most of them well within the understanding of students at key stages 3 and 4 (age 11-16). From…

This article argues that we need to make use of our everyday experiences when introducing concepts in chemistry that are often obscure. It uses reaction rates as an example and explores a common misconception related to the explanation of the effect of rising temperature on the rate of slow reactions.

Learners' curiosity is among the affective domains of learning that has a great potential to take learning to higher levels and meet the demands of the 21st-century teaching and learning process. This paper assesses how hands-on activities performed using learning materials from learners' immediate environment can enhance learners' curiosity in…

Every school should be able to equip students to have the ability to integrate the knowledge gained with real life in responding to global challenges. Assessment of learning outcomes in the form of cognitive and skill aspects must go hand in hand. This study aims to produce: (1) a critical thinking model integrated with the science process, (2)…

Awareness of best safety practices in the industrial sector will allow students in chemistry and chemical engineering programs to apply these approaches to their own safety assessments. Process safety is a critical function within the pharmaceutical industry to ensure safety when performing reactions. An introduction to process safety and a series…

Purpose: Municipal solid waste (MSW) consists mainly of several recyclable materials such as paper and cardboard. Inside the educational institutes, especially universities, MSW is generated from several facilities including offices and cafeterias. Without an effective management program, solid waste can have detrimental impacts on the…

The cooperative learning (CL) is an advanced instructional approach that uses different motivational procedures to make instruction significant and learners more responsible. This study aimed to investigate the effects of cooperative learning on students' achievement in chemistry among the advanced level in 12-year basic education schools; it…