Sumdog provides free educational games to motivate your child to practice math, reading, and writing, aligned with Ohio's Common Core standards. The math questions include word problems that are free to use without any time limit and cover a wide range of topics. The thousands of reading questions cover grmmar and vocabulary. The writing prompts let students write individually or together with their classmates. The students love playing multi-player games against others at school or world wide. Another benefit is that the learning engine builds an understanding of each student tailoring questions to their individual need, and guiding their progress.