In Today's world, life goes on really fast. In order to catch up with life, we need to keep up with technology. Especially in learning and teaching, using a technology for a tool is a must. People can't learn efficently without technology in 21st century anymore. In the past people used to learn mostly with books and teacher. In the classes teacher used to tell the subject, show the methods and expect students to do or learn it. That was a long and hard process because not every student was able to understand in classes, they needed to work more except from the school. Yet they had few sources and tools for studying. On the other hand teachers had really few ways to teach something. They were limited. They had to catch attention in the classes and make students interested in subject somehow because they used to lose connection with their students after school, there were no opportunity to stay in touch. If they can't reach them in the school, they don't have a secon...