I recently learned that Qwizzy's World has expanded with two new websites, Cram Stoppers and Quiz Infinity, that are targeted to older students (middle and high schoolers). How great to know that now this is a collection of sites that can grow with your child and address their needs for many years! Quiz Infinity also has a free option for educators and features a compilation of quizzes and questions, so there really is something for everyone! Just thought you might want to check those out as well!
