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Synchronous tools are technologies used to mediate realtime communication in various forms, including instant messaging, voice-over-internet protocol (VoIP), and video conferencing. Online learning has become a more and more popular and pervasive learning format in the global and digital age; therefore, the demand to adopt synchronous tools and technologies to support real-time interaction in the learning process has been increasing.

Interactions occurring in an online learning environment can be categorized according to (1) interaction between participant learners and content, (2) interaction between the instructor and participant learners, and (3) interaction among participant learners. The first type of interaction (learners-content) usually is mediated through asynchronous tools because learners need time to read, reflect, comprehend, and respond to the content. Synchronous technology can facilitate instructor-learner and learner-learner interactions. Synchronous tools allow the instructor to provide real-time communication, enable all participants to present and communicate simultaneously, and enhance participants’ sense of community and connectedness. Since participant learners from all over the world may participate in an online learning environment, they often will never see their classmates face to face; therefore, it is extremely important to help them form a learning community in which they feel a sense of belonging. Once the sense of community is established, members can interact with one another as they engage in the learning process. The sense of community is strongly related to participant learners’ online learning satisfaction.

Tools to Support Learning

Immediate interaction and social connectedness are at the heart of learning. Immediate interaction occurs between the instructor and learners or between learners and learners. Through real-time discourse, faculty can gauge students’ understanding of the topic, make necessary changes to instruction, mediate confrontation, and allow students to discuss, debate, share, and exchange their perspectives. Real-time discourse is common in the traditional face-to-face classroom. In the online learning environment, the instructor can manage immediate communication through the synchronous tools and technologies. Immediate communication between participants can be mediated through text-based, audio-based, video-based, webinar-based, and 3D virtual environment tools.

Text-based synchronous tools such as Internet Relay Chat (IRQ) and chat rooms are the most commonly used communication technologies because of their low technology requirements. Text-based chat rooms, which are used as personal communication tools, have been adopted by educators to support communication among learners in the online learning environment. The use of synchronous text-based tools is appropriate for stimulating in-depth discussion and for maintaining a relatively high protection of the participants’ identities. Many learning management systems, such as Blackboard and Moodle, provide built-in chat room modules. Participants who are slow in typing or who are non-native speakers may have difficulty in joining text-based mediated sessions as naturally as they would in face-to-face sessions. Sometimes parallel communication occurs in a text-based chat room if there are many participants, and this makes it challenging for participants to follow all of the conversation themes.

Audio-based synchronous tools, such as Skype and Google Talk, are ideal for conducting informal conversations and meetings and for providing just-in-time support. Instructors can provide immediate feedback through audio-based sessions. However, only one presenter can speak at a time, and the conversation session may be dominated by only a few. All participants can communicate simultaneously in text-based chat rooms.

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