Free Grammar Check (yeah, I had doubts the first time I read this too)

GrammarBase is a great tool to help students check their grammar for assignments of all sizes. The free version shows you what mistakes you made, while also explaining the grammar error. In some cases, it will offer suggestions to help you fix errors. 

I plan on showing my students this wonderful tool during the first week of school :)

Here is a screenshot showing GrammarBase explaining the benefits of using active voice rather than passive statements (something I never learned until my junior year of college).

PS...I used it just before I published this blog entry and found two silly mistakes (thank you GrammarBase!)