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Direct linkRafal Fran´ski – Journal of Chemical Education, 2024
The area of application of electrospray ionization mass spectrometry (ESI-MS), usually coupled with liquid chromatography, seems to be much larger than those of any other ionization method. It gives rise to the demand for new teaching methods that would effectively help students to master the principles of working with and making full use of the…
Descriptors: Science Instruction, Chemistry, Molecular Structure, Science Curriculum
Wenyu Lai; Baolin Li – Journal of Chemical Education, 2025
Paal--Knorr reactions are a classical method for synthesizing pyrroles, using 1,4-dicarbonyl compound and amine as reactants. It has the characteristics of green chemistry, as only two molecules of water are lost. In this teaching and learning experiment, 2,5-hexanedione and 4-"tert"-butylaniline were used to synthesize…
Descriptors: Organic Chemistry, College Science, Environmental Education, Science Curriculum
Tsun Hei Yu; Pin-Yuan Lian; Jhih-Yu Lin; Li-Yu Chou; Yan-Ru Chen; Chia-Chi Huang – Journal of Chemical Education, 2024
As a model study for improving undergraduate organic chemistry laboratories with contemporary research concepts and practices, we evaluated a project module aiming at the synthesis of two porphyrin compounds. The module was implemented in a format that differed in several ways from that of a traditional course. It was designed for small student…
Descriptors: Organic Chemistry, Science Instruction, Science Laboratories, Instructional Improvement
Hee-Sun Lee; Gey-Hong Gweon; Aubree Webb; Dan Damelin; Chad Dorsey – Science Education, 2024
This study addresses the measurement of high school students' epistemic knowledge associated with scientific experimentation (EKSE) which concerns "how" scientific experimentation generates knowledge and "why" that knowledge is justified. Based on philosophical, educational standards, and literature analyses, an EKSE construct…
Descriptors: Knowledge Level, Science Experiments, High School Students, Thinking Skills
