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Liu, Hanlin; Zaplishnyy, Vladimir; Mikhaylichenko, Lana – Journal of Chemical Education, 2016
A multistep synthesis of thieno[2,3-"b"]pyridine derivatives is described that is suitable for the upper-level undergraduate organic laboratory. This experiment exposes students to various hands-on experimental techniques as well as methods of product characterization such as IR and [superscript 1]H NMR spectroscopy, and…
Descriptors: Synthesis, Undergraduate Students, Organic Chemistry, Laboratory Experiments
Lotter, Christine; Taylor, Laurie – Science Teacher, 2016
In the 2 day lesson presented in this article, students explain how ionic substances interact in solutions by developing and revising their own explanatory models. The lesson engaged students in three-dimensional learning through creating and revising their own models to explain the interaction of ionic substances and polar molecules in a closed…
Descriptors: Molecular Structure, Science Activities, Science Instruction, Scientific Methodology
Rigsby, Rachel E.; Parker, Alison B. – Biochemistry and Molecular Biology Education, 2016
Visualization of chemical concepts can be challenging for many students. This is arguably a critical skill for beginning students of biochemistry to develop, since new information is often presented visually in the form of textbook figures. It is recommended that visual literacy be explicitly taught in the classroom rather than assuming that…
Descriptors: Science Instruction, Teaching Methods, Scientific Concepts, Biochemistry
Stowe, Ryan L.; Herrington, Deborah G.; McKay, Robert L.; Cooper, Melanie M. – Journal of Chemical Education, 2019
Connecting the behavior of invisible (to the naked eye) particles governed by the principles of quantum mechanics to the world we can see and touch requires a host of inferences, almost none of which can be extrapolated from experience. Molecular-level sensemaking thus relies upon intellectual resources that must be developed in large part by…
Descriptors: Chemistry, Science Curriculum, High School Students, Standards
Tsaparlis, Georgios – Chemistry Education Research and Practice, 2014
Jensen's scheme for the logical structure of chemistry is taken as reference to study the logical structure of physical chemistry. The scheme distinguishes three dimensions (composition and structure, energy, and time), with each dimension treated at one of the three levels (molar, molecular, and electrical). Such a structure places the outer…
Descriptors: Chemistry, Textbooks, Science Instruction, Phenomenology
Schacher, Samuel; Hu, Jiang-Yuan – Learning & Memory, 2014
An important cellular mechanism contributing to the strength and duration of memories is activity-dependent alterations in the strength of synaptic connections within the neural circuit encoding the memory. Reversal of the memory is typically correlated with a reversal of the cellular changes to levels expressed prior to the stimulation. Thus, for…
Descriptors: Brain Hemisphere Functions, Stimuli, Molecular Structure, Neurological Organization
Chamizo, José Antonio – Science & Education, 2014
This paper attempts to show one of the ways history of chemistry can be teachable for chemistry teachers, it means something more than an undifferentiated mass of names and dates, establishing a temporal framework based on chemical entities that all students use. Represents a difficult equilibrium between over-simplification versus…
Descriptors: Science History, Chemistry, Science Instruction, Scientific Concepts
Kohn, Kathryn Paris – ProQuest LLC, 2018
Despite the number of university students who take courses in multiple science disciplines, little is known about how they perceive common concepts from different disciplinary perspectives and to what extent they recognize connections among their courses. This dissertation explores students' perceptions of their chemistry and biology courses…
Descriptors: Chemistry, Science Instruction, STEM Education, Introductory Courses
Summarizing as a Strategy for Science Text Comprehension: Text-Based versus Content-Based Processing
Leopold, Claudia; Brückner, Annette; Dutke, Stephan – Discourse Processes: A Multidisciplinary Journal, 2019
In this experiment, we contrasted two instructions in which the focus of summary writing was varied. We predicted that students would better understand a scientific text when they learn to focus their summaries on the referential content rather than on the hierarchical structure of the text. In a 2 × 2 factorial experiment, 85 Grade-10 students…
Descriptors: Grade 10, High School Students, Writing Skills, Prediction
Davies, Gary B. – Physics Education, 2017
Carrying out classroom experiments that demonstrate Boyle's law and Gay-Lussac's law can be challenging. Even if we are able to conduct classroom experiments using pressure gauges and syringes, the results of these experiments do little to illuminate the kinetic theory of gases. However, molecular dynamics simulations that run on computers allow…
Descriptors: Science Instruction, Science Experiments, Physics, Educational Technology
Enlow, Jessica L.; Marin, Dawn M.; Walter, Michael G. – Journal of Chemical Education, 2017
To improve polymer education for 9-12 and undergraduate students, a plastic electronics laboratory kit using polymer semiconductors has been developed. The three-module kit and curriculum use polymer semiconductors to provide hands-on inquiry activities with overlapping themes of electrical conductivity, light emission, and light-harvesting solar…
Descriptors: STEM Education, Electronics, Hands on Science, Inquiry
Zhang, Wenqiang; Cao, Yibin; Xu, Lishan; Gong, Jufang; Sun, Meihao – Biochemistry and Molecular Biology Education, 2015
Gel filtration chromatography (GFC) separates molecules according to size and is one of the most widely used methods for protein purification. Here, red fluorescent protein (RFP), green fluorescent protein (GFP), yellow fluorescent protein (YFP), cyan fluorescent protein (CFP), and/or their fusion proteins were prokaryotically expressed, purified,…
Descriptors: Biochemistry, Science Instruction, Molecular Structure, Light
Rossi, Sergio; Benaglia, Maurizio; Brenna, Davide; Porta, Riccardo; Orlandi, Manuel – Journal of Chemical Education, 2015
A simple procedure to convert protein data bank files (.pdb) into a stereolithography file (.stl) using VMD software (Virtual Molecular Dynamic) is reported. This tutorial allows generating, with a very simple protocol, three-dimensional customized structures that can be printed by a low-cost 3D-printer, and used for teaching chemical education…
Descriptors: Visual Aids, Models, Printing, Chemistry
Friesen, J. Brent – Journal of Chemical Education, 2015
The visualization of latent fingerprints often involves the use of a chemical substance that creates a contrast between the fingerprint residues and the surface on which the print was deposited. The chemical-aided visualization techniques can be divided into two main categories: those that chemically react with the fingerprint residue and those…
Descriptors: Chemistry, Criminology, Crime, Visualization
Popova, Maia; Bretz, Stacey Lowery; Hartley, C. Scott – Journal of Chemical Education, 2016
Although stereochemistry is an important topic in second-year undergraduate organic chemistry, there are limited options for laboratory activities that allow direct visualization of macroscopic chiral phenomena. A novel, guided-inquiry experiment was developed that allows students to explore chirality in the context of cholesteric liquid crystals.…
Descriptors: Visualization, Molecular Structure, Teaching Methods, Organic Chemistry