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Showing 106 to 120 of 430 results Save | Export
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Tee, Nicholas Yee Kwang; Gan, Hong Seng; Li, Jonathan; Cheong, Brandon Huey-Ping; Tan, Han Yen; Liew, Oi Wah; Ng, Tuck Wah – Journal of Chemical Education, 2018
The handling of chemicals in the laboratory presents a challenge in instructing large class sizes and when students are relatively new to the laboratory environment. In this work, we describe and demonstrate an augmented reality colorimetric titration tool that operates out of the smartphone or tablet of students. It allows multiple students to…
Descriptors: Computer Simulation, Demonstrations (Educational), Handheld Devices, Technology Uses in Education
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Sweet, Chelsea; Akinfenwa, Oyewumi; Foley, Jonathan J., IV – Journal of Chemical Education, 2018
We present an interactive discovery-based approach to studying the properties of real gases using simple, yet realistic, molecular dynamics software. Use of this approach opens up a variety of opportunities for students to interact with the behaviors and underlying theories of real gases. Students can visualize gas behavior under a variety of…
Descriptors: Discovery Learning, Molecular Structure, Courseware, Kinetics
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DePierro, Ed; Garafalo, Fred; Gordon, Patrick – Journal of Chemical Education, 2018
Science students need exposure to activities that will help them to become familiar with phenomena exhibiting exponential decay. This paper describes an experiment that allows students to determine the rate of thermal energy loss by a hot object to its surroundings. It requires limited equipment, is safe, and gives reasonable results. Students…
Descriptors: Energy Conservation, Energy Management, Thermodynamics, Graphs
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Truong, Thai Phat; Bailey, Sophia J.; Golliher, Alexandra E.; Monroy, Erika Y.; Shrestha, Uttar K.; Maio, William A. – Journal of Chemical Education, 2018
The ability of certain organometallic reagents to react via 1,2- or 1,4-addition to an a,ß-unsaturated ketone is a fundamental example of regioselectivity at the second-year undergraduate organic level. The following two experiments were designed to demonstrate this preference by exploiting carvone as an inexpensive chiral, nonracemic substrate.…
Descriptors: Undergraduate Students, Organic Chemistry, Science Experiments, Scientific Concepts
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Diawati, Chansyanah; Liliasari; Setiabudi, Agus; Buchari – Journal of Chemical Education, 2018
Students learned the principles and practice of photometry through project-based learning. They addressed the challenge of measuring the unknown concentration of a colored substance using a photometer they were required to design, build, and test. Then, they used that instrument to carry out the experiment and fulfill the challenge. A photometer…
Descriptors: Student Projects, Teaching Methods, Science Instruction, College Science
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Galloway, Kelli R.; Leung, Min Wah; Flynn, Alison B. – Journal of Chemical Education, 2018
To explore the differences between how organic chemistry students and organic chemistry professors think about organic chemistry reactions, we administered a card sort task to participants with a range of knowledge and experience levels. Beginning students created a variety of categories ranging from structural similarities to process oriented…
Descriptors: Organic Chemistry, Science Instruction, College Science, Graduate Students
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Bhattacharyya, Gautam; Harris, Michael S. – Journal of Chemical Education, 2018
We report our research of seven pairs of students enrolled in the second semester of sophomore-level organic chemistry as they attempted to describe (in their own words) and draw, respectively, three electron-pushing diagrams of three-step reaction mechanisms. The tasks' objective was to accurately reproduce the diagrams based solely on the…
Descriptors: Science Instruction, Organic Chemistry, College Science, Undergraduate Study
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Graulich, Nicole; Schween, Michael – Journal of Chemical Education, 2018
Acquiring conceptual understanding seems to be one of the main challenges students face when studying organic chemistry. Traditionally, organic chemistry presents an extensive variety of chemical transformations, which often lead students to recall an organic transformation rather than apply conceptual knowledge. Strong surface level focus and…
Descriptors: Science Instruction, Scientific Concepts, Organic Chemistry, College Science
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Applebee, Michelle S.; Johanson, Ami P.; Lawler-Sagarin, Kimberly A. – Journal of Chemical Education, 2018
It is essential that chemists develop strong oral communication skills. At the undergraduate level, this requires students to build confidence in their ability to speak without a script and to utilize graphics effectively. We have developed a short activity that helps address common presentation issues such as overuse of text and reading verbatim…
Descriptors: Science Instruction, Chemistry, College Science, Undergraduate Study
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Timmer, Brien J. J.; Schaufelberger, Frederik; Hammarberg, Daniel; Franzén, Johan; Ramström, Olof; Dinér, Peter – Journal of Chemical Education, 2018
Green chemistry and sustainable development have become increasingly important topics for the education of future chemists. The cross-disciplinary nature of green chemistry and sustainable development often means these subjects are taught in conjunction with other subjects, such as organic chemistry and chemical engineering. Herein, a…
Descriptors: Organic Chemistry, Undergraduate Students, Sustainable Development, Science Laboratories
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Cox, Charles T., Jr.; Poehlmann, Jennifer Schwartz; Ortega, Caitlin; Lopez, Julio C. – Journal of Chemical Education, 2018
Problem solving and critical thinking are buzzwords used in defining general chemistry learning goals. Assessments including well-structured homework, quizzes, and exams are designed and incorporated to build these skills. Our research expanded upon the types of assessments and analyzed the effect of writing assignments for promoting problem…
Descriptors: Problem Solving, Critical Thinking, Chemistry, Science Instruction
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Dood, Amber J.; Fields, Kimberly B.; Raker, Jeffrey R. – Journal of Chemical Education, 2018
The Lewis acid-base model is key to identifying and explaining the formation and breaking of bonds in a large number of reaction mechanisms taught in the sophomore-level year-long organic chemistry course. Understanding the model is, thus, essential to success in organic chemistry coursework. Concept-inventories exist to identify misunderstandings…
Descriptors: Science Instruction, College Science, Undergraduate Study, Scientific Concepts
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Boesdorfer, Sarah B.; Baldwin, Emilee; Lieberum, Kyle A. – Journal of Chemical Education, 2018
Many students associate grades with the completion of course work rather than learning the course content. While research has heavily focused on teaching strategies and instructional tools to improve students' learning in general chemistry, less focus has been given to assessments as a learning tool to improve students learning. Standards-based…
Descriptors: Grading, Standards, Science Instruction, Nonmajors
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Pinto, Alexandre H. – Journal of Chemical Education, 2018
The experience of designing and teaching a lecture-based course about characterization techniques commonly used in solid state chemistry and materials science in an undergraduate institution is described. Among the techniques studied were the following: powder X-ray diffraction, infrared spectroscopy, Raman spectroscopy, scanning electron…
Descriptors: Science Instruction, College Science, Chemistry, Undergraduate Study
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Nagaoka, Shin-ichi; Kokubo, Tatsunobu; Teramae, Hiroyuki; Nagashima?, Umpei – Journal of Chemical Education, 2018
At an advanced stage of learning quantum chemistry, undergraduate students usually encounter simple Hückel-molecular-orbital (HMO) theory, whose primitive approach gives very useful insight into the electronic structure of p-conjugated molecules. However, on one hand, computational HMO software, when programmed without using molecular symmetry,…
Descriptors: Visualization, Chemistry, Science Instruction, Molecular Structure
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