Sentences describing the classroom atmosphere in high school

1, the classroom was quiet, and the sound of needles could be heard. The students scrambled to answer the teacher's questions. The teacher gave a serious lecture and the students listened carefully. The teacher's casual humorous words immediately aroused the students' laughter.

2. Some students look around, capture information, some whisper, discuss in a low voice, some bow their heads and meditate, and secretly screen.

At this time, the class is very quiet, and everyone in the audience focuses on me. I really wanted to get into the cracks at once. When the teacher told me to sit down, I sat on the stool like a deflated ball, and I didn't know what it was like.