Through his or her physical presence, the teacher can instill confidence and spark insight. Despite its many advantages, the traditional classroom has some inherent limitations due to its physical layout. Unlike CBL and WBL, the number of learners and teachers that can feasibly participate in the learning experience is limited. The geographical distribution of participants is restricted as well. In contrast to the CBL environment, it is difficult for a classroom teacher to provide individualized pacing and high levels of immediate, direct, personalized feedback.
Learners can study at their own pace and receive direct, immediate, and tailored feedback.
The content can be reviewed as needed, relieving learners of the need to rely solely on memory and notes. Another key attribute of multimedia CBL is the potential for rich, highly integrated mixtures of media elements. The responsiveness can be much greater than that which is currently supported by the slow transfer rates of the Internet. The speed and bandwidth of the WWW will certainly increase in the future, but it is hard to imagine a distributed network achieving transfer speeds comparable to those between the disk drives, memory, and displays of modern personal workstations. A third key attribute of the computer-based learning environment is the computer's ability to process and transform information.