為提升學生在合作學習上的成效，本論文提出一個線上多人即時共讀系統，透過此線上學習平台幫助教師和學生完成課程上的教學。多人即時共讀系統主要是由WebSocket配合YouTube player實現合作學習的教學環境。在整個教學過程中，主要是以教師引導學生的方式，一起觀看教學影片，學生從中給予教材內容一些學習上的回饋，藉此教師也能夠即時了解學生在學習上的狀況，以增進教學品質及提升學生之學習樂趣。學生假如遇到課程上的問題，可以在聊天室裡與大家討論和分享。系統也提供諸多功能像是交付會議主持權的功能，教師可以將整個會議主持權交付給某個學生，讓他針對教學內容發表一些心得感想。教師歸還撥放器控制權，讓學生可以自行觀看教學影片。此外系統最大的特點是提供了分組的功能，有別於市面上的軟體像是Skype、JoinNet……等等。教師可以根據學生的學習情況，為學生的組別做適當的調整。學生假如要自行分組則需由教師給予學生權限才行。 To promote the performance of cooperative learning, the study proposes the online multi-user real-time co-reading system. Through this platform, it assists the teacher and students in learning. Multi-user real-time co-reading system was created with WebSocket and YouTube player realizes the teaching environment of cooperative learning. In the teaching process, the teacher guides students to watch the teaching film and then students can give the feedback. According to the feedback, the teacher is able to understand immediately the students’ learning condition so that the teacher can adjust the learning material to improve students’ learning effect and interest. When students have a learning problem, they can discuss or share the ideas with other members in the chatroom. The platform also offers the other functions such as handing over the leadership to the student for sharing learning reviews. The teacher can also return the player’s controller so that students can learn by themselves. In addition, the greatest feature of the system is the grouping mechanism that is different from Skype and JoinNet. The teacher can rearrange students’ class group based on students’ learning condition. If students want to change their class group, it needs to be authorized by the teacher.