PURPOSE: a kind of interaction processing method is provided in teacher and student by digital textbook to allow to communicate, and taught and learned between teacher and student using digital textbook can distribute such as e-book. ;CONSTITUTION: digital textbook is divided into digital textbook teacher (10) and digital textbook student (20). Spectators teacher (1) runs or resets student (2) operation of digital textbook teacher and spectators or resets the student of digital textbook. Server (3) manages data transmission and reception spectators and spectators for teacher student. ;The 2013 of copyright KIPO submissions;[Reference numerals] (1) instructor view person; (2) observation of students person; (3) server
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