This teacher wanted ipads instead of MacBooks. Here's the rationale including that the teacher can better differentiate. Now, the teacher has been using iPads for 3 weeks and captures reflections. This is what a good implementation SHOULD look like. Sadly, the teachers who use them as epaper don't get to see these sorts of results because they are missing the point. Great read.
The New York Times has some options to allow students to participate and learn from the US Presidential debates. If you're teaching and you are wanting to use this as a topic, this is a great lesson plan.