Watch all classes of their courses and optimize your time, look at the resources we created for you: - visualization of all classes of the courses (while the cursor is active); - download classes to watch offline; - Download support school material; - marking of classes ever seen. The class is marked as seen after watching 90% of the video; - acceleration of video in up to 2x (for Android version 6.0 or higher); - transmission of aovivo classes (if you have aovivo course);