Teacher Discussion Forums

Besides the period, the comma is probably the most widely used punctuation mark in English writing. In fact, the comma might actually be used more frequently than the period, as some sentences have multiple commas but only one period (like this one).

In this post, Jordan went over five common comma errors found in student writing and how you can fix them.

- http://bit.ly/1bTF07K

typically in non-defining relative clauses.

That's good. But I think this is common issue. If students are not much aware about using commas they can't learn ever.