In today's English-speaking world, especially on ATRL, grammar seems often to be a lost art. Many schools aren't even teaching it any more, leaving kids to pick it up on their own. And how likely is the average ten-year-old to go around assigning him/herself more homework? Not very likely. Result: a large number of adults who, although perfectly intelligent and able to communicate, use terrible grammar and have very little grasp of the basics.
The Lessons
We begin with Remedial Grammar. Start here if you aren't sure what nouns, verb, adjectives and participles are.
After that, your choices are:
Punctuation: the proper use of commas, apostrophes, etc.
Confused Words: a collection of words that are frequently confused or used incorrectly
Common Mistakes: things that a lot of people do wrong, and/or that you may have heard about. What's a dangling participle? Why shouldn't you say "ATM machine"?