The deepest learning experiences come from extended intermitted interaction with the subject material. ChemVantage provides free quizzes, homework assignments and practice exams that keep students engaged by allowing multiple submissions until students succeed. Randomized quizzes are designed to be completed before the lecture, to promote discussion. Challenging homework problems focus on application skills. Parameterized questions ensure that students cannot share answers, but can teach each other the algorithms for solving the problems.
Research conducted at a flagship research university shows that students who earn at least 50% of the points on ChemVantage assignments pass General Chemistry (C- or better) with 97% probability.
Generate a free LTI key/secret combination at https://www.chemvantage.org/lti/registration.
Login to your LMS as Instructor, navigate to your course and add a new external tool. Cut/paste the LTI key and secret, making certain not to include any extra blank spaces. Use the configuration URL: https://www.chemvantage.org/lti_config.xml to configure the app.
Create a new assignment, e.g. Quiz - Heat and Enthalpy, and select ChemVantage as the external tool. The launch URL is https://www.chemvantage.org/lti We recommended assigning 10 points for each quiz or homework, and 100 points for each practice exam.
When redirected to ChemVantage, select the appropriate assignment (e.g., Quiz on Heat & Enthalpy). Use the instructor link near the top of the sample quiz to customize the assignment for your class. Go to Student View and take a sample quiz to verify that ChemVantage scores are returned to the LMS grade book.
All data and information exchanged between users and ChemVantage are encrypted by TLS/SSL during transit, and are encrypted on Google Cloud Datastore servers while at rest. Other than contact information for LMS administrators and people who contact ChemVantage directly via email, ChemVantage does not process or store any personally identifiable information (PII).
ChemVantage protects its users' privacy to the maximum extent that allows the site to function as designed. We do not store personally identifiable information (PII) of our users, except we retain the names and/or email addresses of our client LMS administrators and people who contact us directly via email. We do not share any user information with anyone except instructors and the user's LMS through a secure LTI interface.
Personally identifiable information - Except for LMS administrators and people who contact ChemVantage directly via email (e.g., to establish an account), Chemvantage does not store any user PII. No names, no passwords, no addresses, no phone numbers. Because ChemVantage is a free service, we do not process, collect or store any user credit card or financial information whatsoever.
User IDs - During each user's session, ChemVantage issues a cryptographically signed token containing 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.
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 1.X 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 LTI 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 only uses LTI v1.1 and LTI Advantage interfaces with LMS platforms.