Lecture 14a: images labelled as Figure 15-x

[fraggamuffin]

trafficstars

I like this section. Many images are using Figure 15-x, even though this is Lecture 14a.

Probably change it so its Lecture number agnostic as we could be moving this section around, which is what probably happened here.

In general, I think a Best Practice section is a great way to bring the class to a close, when everyone already have a good idea of how it works, and it makes people stay to the end of class. But that is not mandatory.

We should all be adding to this best practice slide set but thanks to Ben for starting this.