Flubaroo is a free tool that can be integrated into Google Docs. It quickly grades multiple choice and fill-in-the-blank assignments. By creating a Google form, students can complete a test or quiz online and then Flubaroo can grade it. In additon to grading, Flubaroo can compute average assignment scores, flag low scoring questions, show a grade distribution chart and email grades to students.
Not having any students of my own, I haven't had the opportunity to try it out. However, the Google Educator community is buzzing about how great this tool is.
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