Teachers use jammers to combat cell phone issues in class
At the high school in Sartois, France, teacher Marie (pseudonym) felt helpless when students frequently used mobile phones in class. In order to reduce the interference of mobile phones on classroom discipline, she decided to adopt an unconventional method - using mobile phone signal jammers. The device blocks cellphones from receiving network signals by sending jamming signals, making it impossible for students to use their phones to play games or send messages in class.
Working principle of jammer and classroom effect
The working principle of a jammer is simple: it interferes with the communication between the mobile phone and the base station by sending a blocking signal, causing the mobile phone to be unable to connect to the network. Mary used the device secretly in class, often hiding it in her notebook so that it would not be discovered by her students. She found that when the jammer was in effect, students tended to head toward the windows in an attempt to restore the signal. Mary was intrigued and even joked that she felt a little proud of the situation.
The helplessness and effects behind illegal activities
Although using a jammer is illegal in France and could result in a €450 fine, Marie decided to take the plunge. She bought a small jammer for this purpose, which cost 60 euros. Mary said the device, while not effective in the back row, was enough to create an "annoying" environment for students in the classroom. Even though she knew what she was doing was illegal, she thought it was a worthwhile investment to keep order in her classroom.
Students’ reactions and teachers’ clever responses
Although the students began to have doubts about the signal problem, and one girl even boldly pointed out, "It's strange, only in your classroom we can't receive the signal," Mary always pretended to be innocent and insisted that she knew nothing about it. . Although the students were suspicious, there was no evidence that Mary was manipulating the signaling issue. She has successfully used this technique to maintain discipline in the classroom while also getting students to be more cautious about using cell phones in class.