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After Math Class
The photo shows a view after a mathematics class for the students of the No.1 Senior High School of Urumqi (乌鲁木齐市第一中学).The teacher is about to leave the classroom, leaving the blackboard not erased. As seen from the blackboard, it can be implied that the very class is about functions(函数) and derivatives(导数) , which are included in Senior Mathematics Book for Chinese students.
After Math Class
The photo shows a view after a mathematics class for the students of the No.1 Senior High School of Urumqi (乌鲁木齐市第一中学).The teacher is about to leave the classroom, leaving the blackboard not erased. As seen from the blackboard, it can be implied that the very class is about functions(函数) and derivatives(导数) , which are included in Senior Mathematics Book for Chinese students.