Commas in complex sentences

This page links to a useful resource on using commas

An example complex sentence:

The one area that many students could improve is their puncutation because they tend to put in too much.

No commas are needed, however many students would try to put in commas!

The rules are complex and I would defintely recommend that student take a look at this exhaustive resource on comma usage from Purdue University’s Online Writing Lab here.