Adjust the colors to reduce glare and give your eyes a break. Use one of the services below to sign in to PBS: You've just tried to add this video to My List. But first, we need you to sign in to PBS ...

Sixth graders in the math class taught by Marietta Gibb and Nicole Parasiliti at DeWitt Middle School in Ithaca work in small groups, allowing kids to practice different skills in the same classroom.