This study investigates the main factors of instructional quality of linear algebra. Total 231 students in Hunan University of Technology completed the course requirements and the assigned questionnaires. Kaiser-Meyer-Olkin sample measure and Bartlett's sphere tests were employed to analyze the compatibility and reliability of the collected data. The factor analysis was subsequently implemented to find out the main factors in linear algebra instruction: instructional management of class,

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... tors' teaching level and students' interests to linear algebra. Several suggestions are provided at last for the improvement of instructional quality of linear algebra.