These cookies can be cleared via browser settings — aboutcookies.org provides cookie management instructions for many specific browsers.</p> <p> </p> <ul> <li> <strong>Google Analytics</strong> cookies allow us to see data such as the number of site visitors we get, and which pages they visit the most.</li> <li> <strong>Vimeo</strong> cookies are stored when users play the videos on our homepage, and primarily keep track of the video player settings.</li> </ul> <p> </p> <p>The XtraMath website uses “LocalStorage” files to remember a user’s sign-in information (if they choose to do so). We also use “SessionStorage” to improve performance during student activities by temporarily storing activity data on the device. Use of LocalStorage and SessionStorage is not required to use XtraMath.