Reflection for Jan. 26th Class

I really enjoyed trying to figure out how to model dividing fractions.  This is a tough topic for me to really "grasp".  I still feel like I would have a difficult time explaining the "why" to students.  I liked the example I was able to find online....I posted the PowerPoint slides on my blog.  This example made sense, until we had to work on a more difficult problem and then suddenly I was lost again.  My question is, would I really want to explain this to students?  I worry that explaining it would confuse the students.