A classroom teaching interaction method, terminal and system. The method comprises: a teacher terminal (100) initiates an answering start instruction to one or more student terminals (200) (S101); the one or more student terminals (200) acquire handwriting information of smart pens connected to the student terminals (200) in a paired manner on a writing book, and synchronously drawing the handwriting information on answering interfaces of the student terminals (200) (S102); a student terminal (200) selected to display answers sends screen content thereof to the teacher terminal (100) in real time (S103); the teacher terminal (100) displays, by means of a large-screen display device, the screen content sent in real time by the selected student terminal (200) (S104). According to the method, on the one hand, a user can quickly complete the answering of subjective questions without changing writing habits, thereby improving the experience and efficiency of digital answering of the user; on the other hand, the answering process and result can be displayed to students of the whole class in real time like traditional answering on a blackboard, thereby greatly enhancing the classroom interaction effect.
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