A quick look on Google found loads of possibilities like these
http://ipad.appstorm.net/roundups/gr...for-your-ipad/
I reckon that Paper by FiftyThree could work well for you as you can import PDFs and then annotate them. This means you could create basic templates for the various scenarios using Word or whatever, then "draw" in them during the training sessions. Much better than starting from scratch each time.