Working at home as a professional scorer can be a flexible way to make money working at home. Workers score anything from college entrance exams to K-8 and high school reading, writing, math and science. Similar to tutoring, you select the level and subject you want to score and you're given the work based on your preferences and availability.
A well-known company that hires for such work is Pearson. They require a minimum of 20 hours per week, a Bachelor's degree and a PC. (They're not currently Mac compatible.) The pay can be up to $12 an hour. They tend to hire in cycles and will hold onto your resume if they don't hire you right away. To apply with Pearson, click here.