During the first period of evening self-study, Mr. Gao Heshuai, holding his textbook, entered Class 8.
He stood on the podium, his towering figure like a mountain.
"Open up yesterday's test papers, let's go over them."
Mr. Gao Heshuai usually didn't teach new content during evening self-study; in most cases, he would hand out test papers for everyone to do.
His strategy was simple: build up a mountain of problems and then clearly explain the solving techniques with his unique understanding to the students.
Mr. Gao Heshuai had an imposing appearance, and his voice when lecturing was loud and clear, so that even the students at the very back could hear him without any effort.
Tonight, the students seemed exceptionally restless and inattentive, with many minds wandering.
Mr. Gao Heshuai didn't seem to notice this, his face darkened, and he began calling on students to answer questions.
Whoever couldn't answer would remain standing.
