text: Liting car usage is important and we all need to be like the town of Vauban in germany.    In the 21st century, the world has become increasingly digitized. This has allowed people to communicate with greater ease and from further distances. An example of a part of daily life that uses more and more technology is the education system. Many classrooms are beginning to offer information via online. Despite the limitations of an online classroom, it will benefit students by offering them flexibility and by preventing them from falling behind.