The graph above is'nt really detailed, it's really simple and plain that it doesn't have any way of reading it. If you know how to read this...pat yourself on the back.
Now this one is straight to the point, simple, and it's enough to get to the point it is good. The only thing is that the business cycle is just more than a Recovery, expansion, downturn and recession.
This is the lord all mighty god lord when it comes to economic/ business cycle, not only is it straight to the point, easy to read, simple and detailed. This should be the foundation when it comes to teaching the cycle.