The Internet can be a tough field of play, but Mary Crippen has managed to tackle it with ease. After all, the Miami-based third grade teacher has gone viral with her playbook—er, lesson plans—packed ...

Add Yahoo as a preferred source to see more of our stories on Google. Mary Martinez loves the Miami Dolphins so much that she has included the team in her third grade lesson plans and some of those ...

The Internet can be a tough field of play, but Mary Crippen has managed to tackle it with ease. After all, the Miami-based third grade teacher has gone viral with her playbook—er, lesson plans—packed ...