This is the poerpoint I put together for Le Chatlier's principle in the equilibrium unit that I do. It can be used for both AP and general chemistry. There is also fill in notes that I use with this to help my students and speed up the note taking process.
It includes a demonstration to help students make predictions and have an exploration type activity to help solidify the concept. It is the common cobalt chloride equilibrium or as I call it the "pink-purple-blue" demo.