I found a list of commonly misspelled words that are often mistaken as being one word or two words. As part of my attempt to help students avoid looking foolish in their writing, I taught the list and created quizzes.
While this might not be a specific skill associated with the ACT or other standardized tests, the ability to spell words others often misuse is an important skill.
I was also inspired after a student played Journey's Separate Ways music video. I came up with a perfect parody idea to help teach the separate words and have fun. Too bad the other teachers in my department were not as inspired. However, if you're looking for an educational song that will be a whole lot of fun to create, I provide the lyrics (which is also a study guide). If you're looking for a video that will go viral and help your school's reputation, this could be the one. Two quizzes with over 36 words and Quizstar import codes, so you can have the students take them online and analyze data, since data is more important than fun, anyhow.
Please, if you go all out and make this an inservice activity, publish it to Youtube and just give me credit as the writer of the lyrics. If you're not sure how totally awesome it would be, just check out the music video for Separate Ways and imagine your department filming it. Middle school or elementary school teachers might have the personalities to pull this off more than my high school colleagues, but if an administrative staff filmed this over the summer, imagine the awesome opening day activities.
I have also written Comma Chameleon, but this song is more educational and would make a great video. Remember, the download includes a link to music with no vocals recorded by a local award-winning musician, but you could also use the karaoke version of the song. Challenge other schools to see who can do this the best.
For more creative ideas, see my Educabana sales page.