We have a variety of great new tools for you this week. All of these come from your suggestions.

• Teaching That Makes Sense - Free classroom-tested PDF guides that cover topics such as professional development, learning patterns, reading, and writing for K-12.

• PBS Teachers - A set of free online resources for PreK-12, including lesson plans, teaching activities, videos, games, and simulations.

• Academic Earth - Free OER (Open Educational Resources) online classes and videos from top universities.

• Snapheal - A Mac desktop app that can remove items from a photograph, almost as if it was never there.

• Skillshare - A marketplace to take and teach classes, both online and offline. Learn something new or earn side income teaching a workshop.

Thank you everyone for suggesting tools to be included on edshelf. We have many more coming.

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- Mike Lee, Co-founder of edshelf