Tutpup is a free web site whose focus is to help children gain confidence and mastery of basic educational skills. Children from all around the world can log in to Tutpup and play games against each other.
I first found out about Tutpup while watching a video on teachers.tv. I follow the blog of one of the teachers shown in the video, Tom Barrett and he uses Tutpup with his students. The students enjoy competing with other children around the world as they are also practicing their math and spelling skills.
Teachers can create a class code that students use when they register for Tutpup. When registering, students are only asked to provide only minimal information, their first name and year of birth. After students are registered and have played the games teachers can check out their students' progress by going to the Reports section. Since this is a UK web site, teachers should check out the levels that would be appropriate for their students.