"What symbol is used to represent the square root of a positive number a, and what is a called? What is the root exponent?"
He Xiangfeng was standing on a three-foot-high podium, teaching mathematics to the students of Class 2, Grade 1 in Gangyang Town.
"Which student can answer this question? Please raise your hand."
Two-thirds of the students below the podium raised their hands, and He Xiangfeng showed a satisfied and knowing smile on his face.
His career has entered the countdown, and he cherishes the opportunity to stand on the podium more than ever.
Login to comment
Be the first one to comment...