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Development of a web-based, Student-Centered Stereochemistry Tutorial

JOURNAL OF CHEMICAL EDUCATION 2013年第12期90卷 1622-1625页

作者： Burrman, Nicola J. Moore, John W. Univ Wisconsin Dept Chem Madison WI 53706 USA

A web-based stereochemistry tutorial is described that details the core definitions and structural representations of stereochemistry in an organic chemistry course. The Cahn-Ingold-Prelog rules and their application for assigning R and S orientations to stereocenters and E and Z orientations to alkenes are discussed. This tutorial is unique in allowing students to determine their preferred structural representation of organic molecules and select their own method for making stereochernical comparisons between these molecules. The remaining content of the comparison section of the tutorial is presented using the method that the student selected.

关键词： Second-Year Undergraduate Organic Chemistry internet/web-based learning Stereochemistry Student-Centered learning

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An Advanced, Interactive, High-Performance Liquid Chromatography Simulator and Instructor Resources

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JOURNAL OF CHEMICAL EDUCATION 2013年第2期90卷 198-202页

作者： Boswell, Paul G. Stoll, Dwight R. Carr, Peter W. Nagel, Megan L. Vitha, Mark F. Mabbott, Gary A. Univ Minnesota Dept Hort Sci St Paul MN 55108 USA Gustavus Adolphus Coll Dept Chem St Peter MN 56082 USA Univ Minnesota Dept Chem Minneapolis MN 55455 USA Penn State Greater Allegheny Dept Chem Mckeesport PA 15132 USA Drake Univ Dept Chem Des Moines IA 50311 USA Univ St Thomas Dept Chem St Paul MN 55105 USA

High-performance liquid chromatography (HPLC) simulation software has long been recognized as an effective educational tool, yet many of the existing HPLC simulators are either too expensive, outdated, or lack many important features necessary to make them widely useful for educational purposes. Here, a free, open-source HPLC simulator is described that we developed. The web-based simulator is uniquely sophisticated, yet accessible to a diverse user group with varied expertise in HPLC. It features intuitive controls and indicators for a wide range of experimental conditions, and it displays a graphical chromatogram to provide immediate feedback when conditions are changed. The simulator can be found at ***. At that web site, a number of example problem sets are also provided that educators can easily use. to incorporate the simulator into their curriculum. Comments from students who used the simulator in an undergraduate analytical chemistry class were positive.

关键词： Upper-Division Undergraduate Analytical Chemistry Computer-based learning internet/web-based learning Chromatography HPLC Separation Science Student-Centered learning

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Development of an Online, Postclass Question Method and Its Integration with Teaching Strategies

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JOURNAL OF CHEMICAL EDUCATION 2012年第4期89卷 456-464页

作者： Flynn, Alison B. Univ Ottawa Dept Chem Ottawa ON K1N 6N5 Canada

A unique method was devised integrating online postclass questions, clickers, a tablet, and active learning strategies in each class. This successful method connected in- and out-of-class learning, provided prompt, regular, and relevant feedback to students and to the instructor, encouraged students to spend time on task, and enabled class time to be focused on topics that students found particularly challenging. The effects on student learning and experience in large organic chemistry courses, as determined from students' assignment, midterm, and exam scores as well as student surveys, is discussed. The results of four years of data identified statistically significant improvements in students' scores at the question level in classes that used the postclass question method as compared to classes that did not.

关键词： First-Year Undergraduate/General Second-Year Undergraduate Organic Chemistry Collaborative/Cooperative learning Inquiry-based/Discovery learning internet/web-based learning Multimedia-based learning Problem Solving/Decision Making Student-Centered learning

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ChemVoyage: A web-based, Simulated learning Environment with Scaffolding and Linking Visualization to Conceptualization

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JOURNAL OF CHEMICAL EDUCATION 2012年第7期89卷 878-883页

作者： McRae, Christopher Karuso, Peter Liu, Fei Macquarie Univ Dept Chem & Biomol Sci Sydney NSW 2109 Australia

The web is now a standard tool for information access and dissemination in higher education. The prospect of web-based, simulated learning platforms and technologies, however, remains underexplored. We have developed a web-based tutorial program (Chem Voyage) for a third-year organic chemistry class on the topic of pericyclic reactions to illustrate this approach with scaffolding and visual auxiliaries. The questions in the tutorial are tiered to simulate the pyramidal structure of knowledge and interlinked to form concept maps required to aid student learning. Visual cues and remedial exercises are linked to advanced questions to facilitate integration of knowledge. Students advance through lower levels to reach higher levels at their own pace. This web-based learning program provides flexible delivery for the learner and records the learning history of an individual user for the instructor. The diagnostic information helps with reflective teaching and facilitates independence of the learner. Student feedback shows that this is an effective approach in improving their learning outcomes.

关键词： Upper-Division Undergraduate Organic Chemistry Computer-based learning internet/web-based learning Problem Solving/Decision Making Reactions Stereochemistry Student-Centered learning

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Chemistry By Design: A web-based Educational Flashcard for Exploring Synthetic Organic Chemistry

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JOURNAL OF CHEMICAL EDUCATION 2012年第8期89卷 1080-1082页

作者： Draghici, Cristian Njardarson, Jon T. Univ Arizona Dept Chem & Biochem Tucson AZ 85721 USA

Chemistry By Design is a new educational web site that contains a continuously growing database of natural product and pharmaceutical syntheses. It focuses on providing visitors with an opportunity to learn about the wonders of synthetic organic chemistry by browsing published sequences and viewing each synthetic step individually. Emphasis has been placed on exploiting the wonderful graphical language of organic chemistry to most effectively communicate the educational content as well as to allow visitors to test their knowledge in a variety of different ways. Chemistry By Design is also available as a free application for both Apple iOS and Android devices.

关键词： General Public Graduate Education/Research Upper-Division Undergraduate Organic Chemistry Computer-based learning internet/web-based learning Problem Solving/Decision Making Drugs/Pharmaceuticals Synthesis

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JCE Classroom Activities Virtual Issue: Celebrating 15 Years with the 15 Greatest Hits, 1997-2012

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JOURNAL OF CHEMICAL EDUCATION 2012年第9期89卷 1092-1094页

作者： Jacobsen, Erica K. The Dalles Oregon 97058 United States

The 15th anniversary of the launching of the JCE Classroom Activity series is highlighted. These hands-on, minds-on activities largely use grocery and hardware store materials to investigate a wide range of chemical concepts. While written for high school students, they are adaptable for use with other levels, from the very young up to adults. The top 15 most downloaded JCE Classroom Activities over the period of one year have been selected as the content of a Journal of Chemical Education virtual issue. This article describes the content and directs the reader to the virtual issue.

关键词： General Public First-Year Undergraduate/General High School/Introductory Chemistry Elementary/Middle School Science Hands-On learning/Manipulatives internet/web-based learning Inquiry-based/Discovery learning

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Teaching Chemistry Using Student-Created Videos and Photo Blogs Accessed with Smartphones and Two-Dimensional Barcodes

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JOURNAL OF CHEMICAL EDUCATION 2012年第4期89卷 492-496页

作者： Benedict, Lucille Pence, Harry E. Univ So Maine Dept Chem Portland ME 04104 USA SUNY Coll Oneonta Dept Chem & Biochem W Oneonta NY 13861 USA

Increasing numbers of college students own cell phones, and many of these phones are smartphones, which include features such as still and video cameras, global positioning systems, internet access, and computers as powerful as the desktop models of only a few years ago. A number of chemical educators are already using these devices for education. By the time they reach college, many students have created video content and shared it on web sites, such as YouTube. It has become easy to create two-dimensional barcodes that include a universal resource locator web address that can connect the web browser on a smartphone to a web site. This article discusses how these new capabilities can be used to teach chemistry.

关键词： First-Year Undergraduate/General Chemoinformatics Laboratory Instruction Computer-based learning internet/web-based learning Multimedia-based learning Student-Centered learning

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Online Video Tutorials Increase learning of Difficult Concepts in an Undergraduate Analytical Chemistry Course

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JOURNAL OF CHEMICAL EDUCATION 2012年第9期89卷 1128-1132页

作者： He, Yi Swenson, Sandra Lents, Nathan CUNY John Jay Coll Criminal Justice Dept Sci New York NY 10019 USA

Educational technology has enhanced, even revolutionized, pedagogy in many areas of higher education. This study examines the incorporation of video tutorials as a supplement to learning in an undergraduate analytical chemistry course. The concepts and problems in which students faced difficulty were first identified by assessing students' homework assignments and exam responses. Then, a tutorial Video clip aimed at that specific knowledge point was designed by the instructor using the Camtasia software package and was uploaded to the course web site portal (Blackboard). To assess the effectiveness of the tutorials, students' oral and written feedback, pre- and post-video-tutoring exam performance, and data from previous classes taught by the same instructor were examined. Results indicate that online video tutorials are a valuable, flexible, and cost-effective tool to improve student mastery of chemistry problem solving.

关键词： Second-Year Undergraduate Upper-Division Undergraduate Analytical Chemistry Curriculum internet/web-based learning Enrichment/Review Materials Student-Centered learning

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QR-Coded Audio Periodic Table of the Elements: A Mobile-learning Tool

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JOURNAL OF CHEMICAL EDUCATION 2012年第4期89卷 552-554页

作者： Bonifacio, Vasco D. B. Univ Nova Lisboa Fac Ciencias & Tecnol Dept Chem REQUIMTE P-2829516 Caparica Portugal

A quick response coded audio periodic table of the elements (QR-APTE) was developed using free online resources. The potential of QR-APTE was tested using a smart phone and is envisaged to become a truly powerful tool... 详细信息

关键词： First-Year Undergraduate/General High School/Introductory Chemistry Chemoinformatics Distance learning/Self Instruction internet/web-based learning Periodicity/Periodic Table

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Up the Garden Path: A Chemical Trail through the Cambridge University Botanic Garden

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JOURNAL OF CHEMICAL EDUCATION 2012年第11期89卷 1390-1394页

作者： Battle, Gary M. Kyd, Gwenda O. Groom, Colin R. Allen, Frank H. Day, Juliet Upson, Timothy CCDC Cambridge CB2 1EZ England Cambridge Univ Bot Garden Cambridge CB2 1JE England

The living world is a rich source of chemicals with many medicines, dyes, flavorings, and foodstuffs having their origins in compounds produced by plants. We describe a chemical trail through the plant holdings of the Cambridge University Botanic Gardens. Visitors to the gardens are provided with a laminated trail guide with 22 stopping points marked on a map. For each of the 22 familiar plants, the principal chemical component(s) and their applications are identified. The virtual trail on the gardens web site provides additional chemical information including links to the experimentally determined three-dimensional structures of the molecules from the Cambridge Structural Database. Visitors to the gardens with quick response (QR) code readers on their mobile phones will also be able to access this enhanced chemical information digitally. Our hope is that the trails (actual and virtual) will take advantage of students inherent interest in the chemistry of the natural world and encourage them to learn more about the myriad of vital chemicals that are available in the plant kingdom.

关键词： General Public High School/Introductory Chemistry First-Year Undergraduate/General Interdisciplinary/Multidisciplinary Public Understanding/Outreach internet/web-based learning Plant Chemistry X-ray Crystallography

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