I am in the process of publishing a study of language teaching with the use of multiple intelligences, I guess the best start is to identify the type of intelligences the student's use and adapt the exercises for that.
Winifred Strange and Valerie L. Shafer, Speech perception in second language learners: The re-education of selective perception.
Dorothy M. Chun, Debra M. Hardison, and Martha C. Pennington, Technologies for prosody in context: Past and future of L2 research and practice
Tracey M. Derwing Curriculumissues in teaching pronunciation to second language learners.
They are all published in 'Phonology and Second Language Acquisition Edited by
Jette G. Hansen Edwards and Mary L. Zampini John Benjamins, 2008. You may find many suggestions and teaching tools (of different kinds) for L2 acquisition in formal context.