Art teacher Zhang Kun teaches students the making skills of handicrafts during an art lesson at Xuqiao Primary School in Xuxing Village of Tianxin District in Changsha, central China''s Hunan Province, Nov. 19, 2019. The school in this year started to teach students to make handicrafts at art lessons by using natural materials such as tree branch and pine cone to help them discover the nature. (Xinhua/Chen Zhenhai)