C173 The Applause Was like a Tide

Chu Jun's voice started off soft, but as he warmed up, it grew louder and more resonant. His hand, holding a piece of chalk, danced across the blackboard, inscribing characters with fluid grace. As he wrote, he would turn to explain each step with clarity.

Initially, when Geng Minghua invited Chu Jun to the stage to work through problems, many students were skeptical