This lesson focuses on the roles of all of the punctuation marks; it provides a video, small practices in various sections, and a punctuation self-check.

How is a dash used in a sentence? "Punctuation Made Simple," answers this question and gives examples to make the concepts easier to grasp.

Clear lesson on when to use (and when not to use) a semicolon. The article ends with a self-test and answers. L.9-10.2a Punc/Indep Clause

An exercise with ten run-on sentences where students are asked to choose which re-written sentence is correct. A percentage score is given at the end of the exercise.