学习层次 meaning in Chinese

learning hierarchy

This includes four activities : 1 ) setting up mathematical learning groups with a reasonable arrangement ; 2 ) taking an active part in the activities of groups , and strengthening mathematical communication of students belonging to different learning levels ; 3 ) widening scope of students " communication , improving the efficiency of the communication ; 4 ) teachers instruct students suitably , and evaluate them correctly
包括四点具体措施：成立数学学习小组，注意合理搭配；积极参与小组活动，加强不同学习层次的学生的数学交流；扩大交流伙伴的范围，提高交流效果；教师适当指导，对学生做出合理评价。第三、加强在应用和探究数学问题中的数学交流。