Present these instructional techniques through multiple media. Involve the learners actively in the learning process. Let the learners record their own speech and compare their pronunciation to that of native speakers. Let them practice common phrases and appropriate responses in a variety of social settings. There are over 70,000 items in Senior mastery, correct pronunciation of each English sound with instructions in 28 languages, over 3,500 minimal pairs that can be accessed in three ways, and thousands of mini-dialogs within Speech Acts.
Learners can work in teams, too, taking advantage of peer learning.
An automated management system monitors everything that users do. Network options range from simple program management and record keeping to networked digital video versions. Senior and Middle Mastery come with an Instructor Guide, a Learner Response Book, an a Technical Manual. This system is in place at sites in most countries of the world, and with it, there is no reason students cannot learn to pronounce English well, even if their own teachers do not speak English well. I would have used it constantly.