ChemVantage - General Chemistry
An Open Education Resource
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 about 5000 quiz, homework, exam and video quiz 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 numeric 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. Instructors can create LTI video assignments in the LMS; many of the videos used in this way contain embedded quizzes, and these scores are returned to the LMS grade book. Videos that do not have embedded quizzes will award full credit for watching to the end.
HomeworkThe homework assignments are designed to give students practice in solving quantitative problems having numeric answers. Each student can download the assignment, work the problems and submit the answers online. Answers are judged to be correct if the solution agrees with the solution found in the database to within a specified tolerance (indicated for each problem). For many problems, answers must be expressed with the appropriate number of significant figures. 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. Questions are drawn at random from the database, and the numeric questions are parameterized, making it extremely unlikely that a student will ever get two identical practice exams.
ChemVantage Accounts and PricingFor most users, ChemVantage is FREE. Anyone can use ChemVantage anonymously by simply browsing to www.chemvantage.org. Chemistry instructors can also make ChemVantage assignments available to their classes using our LTI interface, which automatically returns assignment scores to the class LMS grade book. Subscription prices for this LTI service are:
- Public and nonprofit schools and universities: FREE for up to 1000 active LTI users
- Small business and personal subsciptions: $20/month for up to 5 active LTI users
- Corporate partnerships: $5000/yr for up to 10000 active LTI users
- Development server access (to check LTI connections): 10-day free trial
Powered by Google Cloud ChemVantage is hosted by Google App Engine and Google Cloud Firestore, so we are able to provide high quality, reliable and massively scalable 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, Desire2Learn or Sakai) using the LTI standard. This method allows your LMS to handle all passwords, role assignments and security. To obtain a set of LTI credentials from ChemVantage, please visit our LTI registration page. After registration, instructors can customize quiz and homework assignments for their classes 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 Integration ChemVantage is certified by the IMS Global Learning Consortium to be conformant with the LTI 1.0, LTI 1.1, Basic Outcomes 1.0 and LTI Advantage Complete standards for learning tools interoperability. You can find the current IMS certification document here..
This certification 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 obtain a set of ChemVantage LTI credentials at our LTI registration page.
Web Site AccessibilityChemVantage is committed to providing accessible content for its users. The site is in substantial compliance with The Americans with Disabilities Act (ADA) as measured by Level AA of the Web Content Accessibility Guidelines (WCAG) 2.0, which is our target level of compliance. If you experience difficulty accessing any ChemVantage resource or if you have questions or suggestions regarding accessibility of our site, please let us know through the ChemVantage Feedback Page or by using the contact information at the bottom of this page.
Copyright © 2007-2021 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 email@example.com
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The information above must be sent as a written postal mail or email notification to DMCA Office, ChemVantage LLC, 606 Tony Tank Ln, Salisbury, MD 21801 USA, firstname.lastname@example.org
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FERPA ComplianceThe services provided by ChemVantage are fully compliant with all applicable provisions of the Family Educational Rights and Privacy Act (FERPA) (20 U.S.C. § 1232g; 34 CFR Part 99). We receive user data as a School Official under FERPA, either directly from students as a result of completing ChemVantage assignments or from the school or educational institution through the LTI connection to the school's learning management system (LMS). User data are processed solely for educational purposes and are shared back to the school LMS through the LTI connection. ChemVantage does not otherwise process, store, sell or share any student records or personally identifiable information.
- Personally identifiable information (PII) - Except for LMS administrators and people who contact ChemVantage directly (e.g., to establish an account or to request a response to feedback), Chemvantage does not store any user PII. No names, no passwords, no addresses, no phone numbers. ChemVantage does not process, collect or store any user credit card or financial information whatsoever.
- User IDs - During each user's session, ChemVantage issues a secure token that is linked to an opaque user ID to ensure both privacy and security. For LTI users, this ID is provided by the learning management system (LMS). LTI is a secure messaging and communications standard developed by the IMS Global Learning Consortium. LTI connects students and instructors with educational service providers. ChemVantage is a certified LTI provider. Users who enter ChemVantage through our home page are assigned a random ID number and are informed that they are participating as anonymous users.
- Data and Information Collected - ChemVantage collects and stores data and information about the quizzes, homework assignments and practice exams that are downloaded by our users, including customized assignments, individual responses to question items, assignment scores and timestamps. All data and information transmitted to or from ChemVantage are protected by TLS/SSL encryption while in transit, and are stored in encrypted form on Google Cloud Datastore servers while at rest. All user data are solely owned by the user and may be deleted upon request to email@example.com.
- How We Use Data and Information that We Collect - For LTI users, individual user scores, data and information are available to the user, the instructor (as identified by the LMS) and to the LMS administrators. User scores may be reported by ChemVantage directly back to the LMS grade book via the LTI Outcomes Service if this service is supported by the LMS.
For all users, including anonymous users entering the site through our home page, we use scores, responses and user comments/feedback to improve the quality of individual question items in the site as well as site navigation and user experience. We also use timestamps to automatically delete user data and LMS accounts after one year of inactivity.
- Information That We Share - We will access, use, preserve, and/or disclose user information if we reasonably believe it necessary to satisfy a valid and legally enforceable warrant, subpoena, court order, law or regulation, or other judicial or administrative order. Otherwise, ChemVantage does not and will not share any user data or information with anyone except the user's LMS and with instructors and administrators who are identified by the LMS through the LTI interface.
- Google reCAPTCHA - ChemVantage uses the Google reCAPTCHA tool on its LTI registration page to detect bots and prevent spam and abuse. To register your LMS with ChemVantage you must accept the Google reCAPTCHA Terms of Service and the Google API Terms of service. This is not required of users who are accessing ChemVantage resources through the LTI interface (i.e., students and instructors) or users who enter ChemVantage through the home page anonymously.
ChemVantage Terms and Conditions of Use
- LIMITED LIABILITY.
CHEMVANTAGE LLC IS WITHOUT LIABILITY FOR DAMAGES CAUSED OR ALLEGEDLY CAUSED BY ANY FAILURE OF PERFORMANCE, ERROR, OMISSION, INTERRUPTION, DELETION, DEFECT, VIRUS, DELAY IN OPERATION OR TRANSMISSION, INACCURATE INFORMATION, COMMUNICATIONS LINE FAILURE, THEFT OR DESTRUCTION OF OR UNAUTHORIZED ACCESS TO, ALTERATION OF, OR USE OF RECORDS, WHETHER FOR BREACH OF CONTRACT, TORTUOUS BEHAVIOR, NEGLIGENCE, OR UNDER ANY OTHER CAUSE OF ACTION.
- NO WARRANTEE
We are committed to providing the best possible online learning environment for General Chemistry. If you have a question or problem using the site, please let us know immediately, and we will do our best to correct any errors or software bugs. However, ChemVantage software as a service is provided without any warrantee whatsoever. All ChemVantage subscription fees are non-refundable.
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- These terms and conditions were last updated on September 23, 2020