The first class in the morning was math.
When the bell rang, the whole class returned to their seats and waited. A few students who had not finished their math homework were frantically copying.
Teacher Zhai hurried past, then suddenly poked her head in. "Where's Song He?"
Song He, who had been buried in his problems, shot to his feet. "Teacher Zhai?"
"Our math group is going to review the proof of the Woolf-Gong Conjecture. Teacher Ban is going too, so he asked you to teach the class this period. Just go over yesterday's math homework." Zhai Zhu said, "Won't that delay you?"
"Me?" Song He was startled. "No, no, it won't!"
"Are you confident in the proof of the Woolf-Gong Conjecture?" Zhai Zhu asked.
"About eighty percent confident!" Song He said, "Thanks for the effort, teachers!"
Zhai Zhu gave him a long, meaningful look, smiled, nodded, and left.
The entire class stared blankly at the River God. They still did not know that Song He had spent the whole night proving the conjecture, but judging from what Teacher Zhai had just said, it seemed the River God had caused another huge stir.
Song He rummaged through his desk for the test paper but could not find it. He had probably thrown it away. After all, he never did his math homework.
As luck would have it, his deskmate found the test paper. Song He immediately snatched Zhao Yiyi's paper and carried it to the podium. Zhao Yiyi's lips stuck out far enough to hold a pencil, and a string of Resentment Value popped up.
"I'll only explain the last three multiple-choice questions, the last two fill-in-the-blank questions, and the final part of each long-answer question." Song He picked up a piece of chalk and began writing furiously on the