Smart phone has played a very important role in our lives. It is an useful entertaining instrument. We can download a lot of games or books, music, movies and they are free. After a stressful working day, this will be a good way to relieve stress and get back energy. In addition, the phone is also considered one of the modern educational methods. Only with the phone connected to the Internet, we can access and surf the web to enlarge knowledge. On the Internet there are a lot of different knowledge from literature, theology, history, physics to astronomy and politics. Moreover, there are also a number of other helpful news channels, which helps us broaden our knowledge of cooking, fashion, behavior in communication, ... Last but not least, because of the compact , being easy to carry so the phone is loved by almost people. We can take it to anywhere and use it any time. In short, the phone offers a lot of great benefits. Each of us should use it reasonably and efficiently.

With some considerable advancement of science and transformation, the appearance of mobile phone has met a huge demand of customers. And undeniably, its contribution to every aspect of our daily life is of great importance.In the first place, the majority of people take advantage of mobile phone to communicate with each other and update all affairs and situations domestically and internationally on account of its convenience and usefulness. Geographical distance is no longer an obstacle to keeping contact with the outside world. Besides, by spending just a few minutes and taking some basic steps, there are such hot issues that you can easily approach.Moreover, the assistance of mobile phone is believed to strongly support students in their work and studying. With upgradation of latest features and technology and Internet access, mobile phone can give you a bank of documents and information in different fields. It helps save your time, money, energy and finish your tasks in the most effective and perfect way.In conclusion, regarded as one of revolutionary inventions in mankind history, mobile phone has proved its indispensable role at present as well as in the advanced technology future.

First, students can access necessary information, knowledge and tools online to solve problems of applying knowledge of the subject in class. This keeps students focused on developing problem-solving skills that we know of as one of the five most important skills for 21st century workers. believe that the school can gradually shift to the 4.0 educational philosophy, not too heavy on the problem of memorizing knowledge. In the 4.0 era, accessing, storing and presenting information is the responsibility and expertise of robots. Robots with artificial intelligence can do these things more efficiently than humans, and third, give teachers the opportunity to assess new knowledge in the classroom and adapt the way of communication as needed. For example, right after a teacher teaches new knowledge, give an example then can give an exercise and assess the student's understanding in the class using assessment application. This way students will learn more effectively and teachers do not have to wait until the midterm or final exam to know the problem of each student.

 

In modern times, our continued advance in technology has led to the explosion of many useful electronic devices, one of which is mobile phone. It has become a vital part of people’s life on account of the huge benefits it brings. To begin with, mobile phone is a source of information. With Internet access available anywhere and at any time, users can search for the latest news and keep themselves informed of events around the world. Not only providing information, it also acts as a useful device for storage. Photos, videos, records or texts can all be stored in your phone. For instance, when you attend a lecture but seem to be not quick enough to take note everything, it is possible to record it and play back several times. More than that, the important function making it increasingly appealing nowadays is a source of entertainment, offering people with a wide range of activities in the free time such as playing games, listening to music or reading e-books. Last but not least, mobile phone has been upgraded to become a multifunctional device, which can come in handy in different situations. Many cell phones often come with a GPS and a Map application, allowing users to identify their location and get the right way to the place they want. To sum up, mobile phone is undoubtedly one of the greatest inventions, which not only meet the demand for communication, information exchange and entertainment but also offers numerous useful functions that make our life easier.

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Trong thời kỳ hiện đại ngày nay, những tiến bộ không ngừng trong khoa học công nghệ đã dẫn tới sự bùng nổ các thiết bị điện tử tiện ích, trong đó không thể không nói tới điện thoại di động.Thiết bị này đã dần trở thành một phần quan trọng trong cuộc sống con người bởi những lợi ích to lớn mà nó mang lại.Vai trò của điện thoại di động trước hết là cung cấp thông tin. Với Internet dễ dàng kết nối mọi lúc mọi nơi, người dùng có thể tìm kiếm những tin tức mới nhất và luôn cập nhật về các sự kiện diễn ra hằng ngày. Không chỉ mang đến nhiều thông tin, nó còn đóng vai trò như một công cụ lưu trữ hữu ích. Ảnh, vi deo, ghi âm hay cả văn bản cũng đều có thể lưu được trong một chiếc điện thoại. Ví dụ như, trong trường hợp bạn nghe bài giảng nhưng không kịp ghi chép lại, bạn có thể ghi âm và nghe lại để tìm hiểu rõ hơn. Và hơn thế, một chức năng quan trọng của điện thoại khiến cho nó ngày càng trở nên hấp dẫn hiện nay chính là phương tiện giải trí, cung cấp các hoạt động như chơi game, nghe nhạc hay đọc sách truyện online. Không dừng lại ở đó, điện thoại ngày nay vẫn đang tiếp tục được nâng cấp để trở thành một thiết bị đa chức năng, phục vụ con người ở nhiều lĩnh vực khác nhau. Hầu hết điện thoại được cài đặt GPS ( thiết bị định vị toàn cầu ) và ứng dụng Bản đồ, cho phép chúng ta biết vị trí hiện tại của mình và tìm được đường tới địa điểm mình muốn. Có thể thấy rằng điện thoại di động là một trong những phát minh vĩ đại nhất của nhân loại, không chỉ đáp ứng nhu cầu về giao tiếp, trao đổi thông tin và giải trí mà còn mang lại nhiều chức năng hữu ích khác giúp cho cuộc sống con người dễ dàng hơn.

In my opinion, using cell phones in the classroom is necessary. Firstly, students can access necessary information, knowledge and tools online to solve problems and apply knowledge of the subject in class. This helps students focus on developing problem-solving skills, which we know as one of the five most important skills for workers in the 21st century. Second, students have access to information. Information helps the school gradually transition to the 4.0 educational philosophy, not placing too much emphasis on memorizing knowledge. Third, allow teachers the opportunity to assess understanding of new knowledge in the classroom and adjust communication as needed. phone use can reduce or replace person-to-person interaction. We are witnessing a decrease in the time and quality of human interaction as people spend more and more time using technology. Meanwhile, the skill of cooperation and interaction is one of the five most important skills for workers in this era. Of course, when allowing students to use cell phones in the classroom, they need to know the usage guidelines set forth by the school as well as the skills to use it for learning purposes.

Using cell phone in school is the main cause for student's failure and also certain students will be invaded their privacy by other students. Students between the ages of 13-17 do not recognize to use cell phone with appropriate approach, so parents should prevent their children from using cell phone inside their school. When students use cell phone inside a class, it influences on them because inside a class, they spend all their time in texting message to each other or watching videos instead of concentrating on teacher's lecture. In addition to that, they record videos and take photos for both teachers and students for negative purposes. Although cell phone is a useful device, a large number of students use it to harm other students and to be enjoyable instead of focusing on their studying

Cell phone is the main cause of distraction in class. During a lesson, students who use cell phone in class will get distracted and also they waste their time instead of understanding the lesson. Consequently, they will receive a low grade and get failure. Not only students who use their cell phones will get distracted, but also rest students in class will be influenced by students who use cell phones in class. Some students annoy other students by texting or sending message to them, so they cannot concentrate on teacher's lecture and get a low grade as well. Another factor can cause distraction in class is ringtone. When cell phone rings during a lesson, it usually interrupts teacher's ideas and makes him upset, and also waste part of class time. Using cell phone in class is not an appropriate concept and also it decreases the learning capacity for students

Though cell phone is a useful device, a huge number of students use it to invade both teachers and students privacy by recording videos or taking photos. Students are curious. Therefore, they would like to record videos or take photos to their teachers especially when they carry out adverse behaviors such as getting angry, saying bad words, or sleeping inside their class. Moreover, these students alter these videos by adding comments and post them in Facebook or YouTube. In this case, the teachers will lose their students' respect and also they will be frustrated because their privacy are invaded.

Finally, using cell phone has negative consequences on both teachers and students in class. Therefore, Parents should constrain their children from using their phones inside school so that concentrate on their education rather than spend their all time in texting message and invading other students privacy.