Mobile phones are distracting
There are so many times I have seen my classmates play with their phones in class. There are people using them all the time and teachers are so dumb that they cannot see it. There are teachers who believe that children are following the text with their finger when they are placing the finger in their book. There are teachers who really believe that their students are just sitting there with their hands on their lap whilst they listen to the lecture. There are teachers so dumb that they think the looks of grizzled concentration from the student are because of the lesson and not because they are playing Farmville.