Inductive grammar

After reading Damian's article, I felt very enlightened. I like how he outlines comprehensive input and how to approach grammatical points on page 21. This is an inductive approach, that seeks to find out what students know first, BEFORE introducing the grammatical point. Students are presented with the form and go through exercises where they make observations and compare what they see with what they already know. To be honest, I have never consciously approached grammar in this way, but it makes sense. I'm wondering what a sample lesson plan would look like that would be organized around this approach. This would be a very interesting and popular workshop for TAs.