In this study, online learning refers students under the guidance of teachers through the online learning platform for organized learning. Based on the analysis of related research results, considering the existing problems, the main contents of this paper include the following aspects: (1) analyze and study the current student engagement model, In view of the characteristics of online learning activities and online student characteristics, this paper introduced the student engagement model from the student behavior engagement, knowledge engagement and emotional engagement three dimensions; (2) analysis student 's behavioral engagement. The degree of student engagement is mainly calculated by the student's learning behavior data. Then used related methods to calculate learning behavior of student engagement degree. To develop the evaluation indicators of these learning behaviors, to study the method of calculating student engagement through these behaviors. (3) Analysis of Students' Cognitive Engagement. Through study the relevant literature of students' cognitive engagement and analyze the contents of the student's course of study, To develop the corresponding evaluation index and evaluate the students' cognitive engagement degree. (4) Analysis of students' emotional experience degree. Used the self-evaluation method to obtain students e experience information during online learning, to quantify students emotional experience degree and analysis.
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