Edmodo is an education technology platform that allows teachers to communicate with students and parents outside of class, engage students through interactive features like polls and assignments, and help with grading through auto-graded multiple choice assessments. Teachers can easily set up and manage their Edmodo site, and students enjoy using it because it is similar to Facebook and allows them to interact with the class. The document encourages teachers to try out Edmodo if they want help communicating, engaging students, or grading.