Prior to 20 years ago, projectors were not used in the classroom for study. This feature makes lessons more interesting, particularly in natural science subjects such as physics, geography, chemistry, and so on, because scientific events are illustrated with videos, pictures, and sounds. Students are usually astounded by how things appear on the screen and have a clear understanding of the lessons. This large screen allows children to focus more on the lessons and avoid boredom, which is a disadvantage of traditional teaching methods. Before using this device, teachers had a difficult time explaining and conveying natural events to students. They had to use pictures or draw on the board with chalk, which took time but was ineffective. Using a projector, in my opinion, is a great chance that saves time while teaching and keeps children engaged. It also provides more information in a more efficient and detailed manner. Furthermore, thanks to technological advancements and the Internet, this change will continue. P/s : b tham khảo nha ( chúc b học tốt 💕)

Projector had not been used in the classroom for study before 20 years ago. This facility makes the lessons more interesting, especially in natural science subjects including Physics, geography , chemistry,…, the scientific events are illustrated through videos, pictures, and sounds. Students are usually amazed at how things happen on the screen, and they understand clearly about the lessons. This huge screen helps children to focus more on the lessons and not feel boring as the traditional teaching method. Before this device is used, teachers meet difficult explaining and conveying the natural events to students. They must utilize pictures or draw on the board by chalks, which took time but not effective. In my opinion, using projector is a great change, saves time in teaching and keep children engaged. It also provides more information in an effective and detailed way. Besides, this change will be continued thanks to the development of technology and Internet.

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