Move up conditionals?

[sstevens2]

As mentioned in as number 7 in #432, a looping exercise requires conditionals.

In addition, the exercises in the Writing Functions episode : "Find the First" and "Encapsulate of If/Print Block" also use conditionals before the conditionals episode.

Perhaps the conditional episode needs be moved up before loops?

[sstevens2]

It might be an issue of cognitive load but perhaps since the two are often intertwined we should teach loops and conditionals in one episode?

[sstevens2]

When I taught this, I ended up moving the conditionals up into the loops section. It was maybe a little awkward because I did it somewhat on the fly but otherwise seemed to work pretty well.

[martinosorb]

I would tend to agree. The potential of for is much clearer when we have conditionals. This is also related to an existing discussion (#636) on the for loop example being not great, and to a general discussion on the order of episodes (#548).