Grammar lessons you might want to do (i.e. things you’ll assume your students will know and they won’t. Try doing one a day, right at the start of class). Explain the rule, then do an example, then have the students “help” you with an example. Andrea Lunsford’s The Everyday Writer is a great resource for this

Then vs. than

Comma splices

Semicolons

Every day vs. every day

Cite/sight/site

Its and it’s

Making possessives when plural

Bias/biased

Affect/effect

A studentà they (pronoun agreement)

Sentence fragments

Fused/run-on sentences

When to put a comma before “and”

Putting punctuation in relation to quotation marks and parentheses

Colons

Dashes

Capitalization of academic subjects

Who and whom

Misplaced and ambiguous modifiers

Brackets

Active vs. passive voice