Chalkboard and Touchable Screen
A Future Smart Blackboard It is time to improve school’s blackboards. Teachers and students are not able to having class without blackboards. Blackboards always accompany students and teachers whole time in school. Blackboards show all the important knowledge in class. It is really hard for teachers to find some chalks and markers soon during teaching. Teachers spend many times on changing screens, erasing, and organizing blackboards. Students are the direct suffers because blackboards are not convenient. A smarter blackboard may give teachers and students a great success at school. For this purpose, improving of auto-eraser, touchable screen, and transition bank of blackboard is going to be really helpful and useful for teachers and students. Above all improving of an auto-eraser instead of a manual eraser is beneficial for both teachers and students. Auto-eraser is convenient for teachers, when they teaching. They only need to press a button. At the same time auto-eraser is going to clean the blackboard in a moment. Teachers do not need to manual remove blackboards any more. By this way auto-eraser can save lots of time form the limited class time. Later on auto-eraser is much faster than before, and teachers save much time to help students. It means also that students can get more time to ask teachers and get some help from teachers during class. Students may have more time on their hobbies, such as soccer, basketball, skiing, ballet and so on. They can spend more time with their friends and parents. It is great for both teachers and students. Finally auto-eraser is going to keep a clean environment for whole class. For example teachers do not touch the blackboard eraser, soon those chalk dust will not stick on teachers’ hands. Auto-eraser also can keep a clean environment. It is a big deal, because teachers and students keep away with those chalk dust. Those chalk dust cannot come into people’s lungs at all. Auto-eraser