Teacher's experiments enthrall students

YINCHUAN — Two students on a stage held opposite ends of a long plank, while at the center of the plank two others chopped onions as quickly as they could, with one boy's skillful knife work earning him a round of applause.

Soon, these four students, as well as some in rows near the stage, were reaching for tissues to wipe away tears. "My students, why do they tear up when cutting onions? Do you know what this phenomenon is called?" After the lively demonstration, Hu Yongxiang, a physics teacher at Third Middle School of Hongsibu district, in Wuzhong, Ningxia Hui autonomous region, introduced the concept of thermal motion, which was the focus of the day's lesson.

Hu's classes are known for transforming abstract physics concepts into engaging experiments and games, helping to instill his students with enthusiasm for learning physics. "His classes are fun and lively. These experiments are etched in our minds — so we don't just memorize, but learn to apply principles," said Wang Tao, one of Hu's students.