Commitment is important on the part of member teachers. A large amount of time is needed to plan and manage an email interclass project. If some teachers are not as committed to the project as others, this disparity wiill cause frustrations among the teachers and make the project less rewarding for the students. This is shown by contributing to forum discussions, doing a fair share of the group work, and answering all messages in a timely fashion. There are differing opinions as to what is the most effective size for an email project.
More students make it possible to have large groups working together.
Too many teachers and classes make it more difficult to find compability of learning goals, teaching styles, and start-end dates. A large number of teachers in the group increases the amount of email messages and makes the negotiation process more complicated. An interclass project, in order to be successful, must be an integral part of the syllabus. A lot of time is required to provide students with instructions in using the computer and handling email. Many teachers believe the payoff in language instruction is worth this effort.