Working with One iPad

I really liked how this teacher has found a way to use her only iPad in her classroom. She uses an app called "Show Me" to write math problems on it then pairs students up. She has a student who is strong in math teach their partner how to do it on the iPad. Then the other student does a similar math problem. The teacher then saves it and gives it to another pair of students while the rest of the class does a worksheet or a similar task on paper. I thought this would be relevant because not everyone has access to a classroom set of iPads or laptops and this was a creative way to include tech in the classroom with limited resources.