Students simply don't have a good reason to use a cell phone during class hours. If there is an urgent need, there is always a telephone on the school campus for any student who needs it. All mobile phones spend 99% of their time at school texting your friends, taking photos, surfing the internet and hanging out on social media during meetings with teachers. Only at the school level, students are encouraged to focus more on education during school hours and when they leave the affected area after school, can they turn the phone back on and provide services they need. Therefore, schools can properly install signal jammer to prevent students from using their phones too much.
