There are a few different ways you might communicate with tutors or receive help with your homework online. The first is through a chat box - a feature that most services provide so you can quickly ask questions back and forth. You might also utilize a webcam so that you can see your tutor and talk with them out loud. A virtual whiteboard is used to upload your homework questions and work out problems for you to visually see how to do all the steps. If you aren't working with a tutor, you might be accessing videos that explain different concepts in detail. You can pause and rewind these to learn at your own pace. Some services offer practice problems or step-by-step guides for reference on any given topic. Online homework help services are just as effective (if not more so) than sitting down with a tutor in-person.