nowadays, the world is increasingly developing, meaning that new generations must try to study to improve themselves, so the study will also become more harsh for students. The reasons about some students feel the pressure of learning, because there are many expectations on them, and make them feel pressure and uncomfortable, this leads to young people who no longer feel learning is important. the consequence of pressure on learning can cause students to be depressed. for the school is creating many fun activities for students. For the family, they should not expect too much on their children, and give them a private time to rest. This will help them not feel tired and stressful. I believe that the above methods can make students' learning more comfortable.

số học sinh giỏi là 40.7/20=14 học sinh 

số học sinh trung bình là 40.1/8=5 học sinh 

số học sinh khá là 14 +5=19 học sinh 

số học sinh yếu 40-14-5-19=2 học sinh 

đáp số:giỏi là 14 học sinh

trung bình là 5 học sinh 

khá là 19 học sinh 

yếu là 2 học sinh