Who we areChemVantage LLC was founded in 2010 to provide Open Education Resources for teaching and learning General Chemistry. The founder and chief software architect of ChemVantage is Chuck Wight, who has taught General Chemistry since 1984 at the University of Utah, Weber State University and now Salisbury University.
Subject materialThe database is currently populated with more than 2000 quiz, homework and exam questions in General Chemistry.
Why we created this siteChemistry and many other technical disciplines are taught from a problem-solving approach. Lots of practice is required to build a solid foundation of skills for using knowledge to solve scientific problems. We create web sites that provide immediate feedback so that students can learn problem-solving skills through repeated attempts without having to wait long periods of time for their assignments to be graded by human instructors.
Learning versus testingUsually, web sites with dynamic content like this one are best used as learning tools, not assessment or testing tools. For this reason, we have configured the software to allow students to submit proposed solutions to the problems as often as they want, in order to improve their scores. The objective is for students to use the feedback to correct their errors prior to the deadline for the assignment.
QuizzesThe quizzes presented here are designed to encourage students to read and understand the textbook used for the course. The questions are based on material presented in most introductory General Chemistry textbooks. The question items have straighforward answers not requiring detailed calculations. Questions are presented in several different formats including multiple choice, true/false, checkbox, fill-in-the-blank, and numerical answers. Each quiz consists of 10 questions drawn at random from a database containing many more questions. In the process of taking several quizzes to improve their scores, students will likely encounter some questions repeated from earlier quizzes; however, it is unlikely that any two quizzes will contain exactly the same set of questions in the same order. By assigning quizzes to be completed prior to the lecture, instructors can be assured that their students have some exposure to the material. This allows for more discussion, dialog and engagement in the classroom, and it makes learning more fun (really!).
Video LecturesA series of 10-minute video lectures on a variety of General Chemistry topics is avialable from the Home Page. The videos are designed to reinforce the main points presented in many textbooks.
HomeworkThe homework assignments are designed to give students practice in solving quantitative problems having numerical answers. Each student can download the assignment, work the problems and submit the answers online. Answers are judged to be correct if the numerical solution agrees with the solution found in the database to within a specified tolerance (indicated for each problem). The site informs students which answers are correct, so that they can rework incorrectly solved problems and resubmit the answers. Each problem is based on a template that draws parameters at random, so the correct answer is different for each student. This makes them suitable for collaboration and working in groups, because even though the group may work to find a correct algorithm for solving a problem, each student will have to use the algorithm to find the detailed solution to his or her own problem.
Practice ExamsStudents can take timed practice exams that draw questions from any group of 3 or more topics. Each exam is designed to take 60 minutes or less to complete, and includes a selection of 10 quiz questions worth 2 points each, 5 of the easier homework problems at 10 points each, and 2 more challenging homework problems worth 15 points each. The scores on each exam are disaggregated by topic to reveal the student's areas of strength and weakness. Practice exams may be repeated as often as desired. The numerical questions are parameterized, making it extremely unlikely that a student will ever get two identical practice exams.
ChemVantage is FREEAnyone can use ChemVantage anonymously by simply browsing to www.chemvantage.org. Chemistry instructors can also make ChemVantage assignments available to their classes by connecting their class learning management system (LMS) to ChemVantage using our LTI interface. Student scores are automatically returned to the LMS grade book.
All ChemVantage LTI accounts expire automatically after a 6 month period of inactivity.
How Can ChemVantage Afford To Be Free?None of the question items in ChemVantage are owned by textbook publishers, so we pay no royalties or license fees. Also, ChemVantage is powered by Google App Engine, so we are able to provide high quality, reliable service at minimal cost.
InstructorsChemVantage is a great resource for teachers and professors. The BEST way to manage a class using this site is to connect from your institution's learning management system (e.g., Canvas, Moodle, Blackboard Learn, Desire2Learn or Sakai) using the LTI standard. This method allows your LMS to handle all passwords, role assignments and security. For details of how to get a free set of LTI credentials from ChemVantage, please visit our LTI registration page. All LTI connections and ChemVantages services are provided free of charge.
Instructors can customize quiz and homework assignments for their classes simply using the instructor tools in each assignment.
Teaching AssistantsAn instructor may assign any LMS user to be a teaching assistant. This role is recognized by ChemVantage. Teaching assistants may view solutions to homework exercises to provide guidance to students on some of the more challenging problems.
AuthorsAny instructor wishing to contribute question items for quiz or homework assignments may do this using the instructor tools accessible in the assignments. A ChemVantage editor will review and edit them for clarity. The copyrights to all question items at this site are owned entirely by ChemVantage LLC. The only way that we can keep costs low enough to offer free accounts to both students and instructors is to avoid paying royalties to textbook publishers. Therefore, all contributors of ChemVantage question items are asked to certify that all contributed items are original works, and that the author assigns the copyrights to ChemVantage LLC to be shared freely under the terms of a Creative Commons Attribution 3.0 License.
Learning Management System IntegrationChemVantage is certified by the IMS Global Learning Consortium to be conformant with the LTI v1.0, v1.1 and Outcomes Service 1.X standards for learning tools interoperability. The IMS registration number for ChemVantage is IMSB2C2C3B2ce2019W1.
This means that you can configure compatible learning management systems with an LTI link to ChemVantage. This allows your LMS to establish and maintain ChemVantage accounts automatically, without having to maintain separate usernames and passwords. If your LMS supports the LTI Outcomes Service, ChemVantage will report the assignment scores back to the LMS grade book. You can get a free set of ChemVantage LTI credentials at our LTI registration page.
Copyright © 2007-2019 ChemVantage LLCExcept where otherwise noted, the copyright to all content displayed on this site is owned by ChemVantage LLC, and is licensed freely under a Creative Commons Attribution 3.0 License. Any use of this content must acknowledge ownership by ChemVantage LLC and must contain appropriate notice of this CC-BY licence. Permissions beyond the scope of this license may be available by contacting firstname.lastname@example.org
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