一旦进入虚拟课程，他们就可以进入聊天框，一个有互动功能的白板还有一个视频窗口，通过这个视频窗口他们可以看到教师的现场授课。
Once inside the virtual classroom, they have access to a chat feature, an interactive white board and a video window where they can see and hear the tutor in live video and audio.
“我们把实体先虚拟化，然后再造出实体。”66岁的MIT住校教师与艺术家马丁解释道。
"We took something real and virtualized it, and then made it real again," explains Martin, 66, an MIT instructor and artist in residence.
通过将虚拟场景与数据库相连，可以保存用户的所有操作记录，以供教师对用户的操作情况进行检查及评判。
Through linking the virtual scenes with database, users can save the operation records. Teacher can check and evaluate according to the operation records.
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