Logic
Performance

Divide into groups at random
Individuals to choose one or more interfaces to use in performance
Individuals to choose one or more software instruments to use in performance
Amongst other reasons, maybe choose instruments that could be 'melodic' or 'harmonic' or 'textural'
Discuss issues of compositional structure, improvisation, melody, texture, etc. with your group

Consider how you might match your software instruments to the manner in which you'll 'play' them through the interfaces

Be critical of the interfaces

Use MaxMSP to easily find out the relevant numbers to use to connect interface to intrument

Connect and practice

Chord memoriser?
http://audio.tutsplus.com/tutorials/composition/play-chords-with-one-finger-using-logic-pros-chord-memorizer/