Sumdog uses unique games and multi-player mode to enhance students skills.
Community Review for Sumdog
My Take
I have only used the math portion. The math problems are grade appropriate and mixed concepts. Student engagement is high but it is best used for a review time or after work is complete. I find the reports to be somewhat helpful and can be used for student feedback. Another plus for this site is that it is easy to move students into new classes or groups in the teacher back channel. You can not just assign a particular skill or concept to practice so students are likely to have concepts that they are not familiar with.
How I Use It
I use this program for 1st - 5th grades. We use the math portion for skills and drills. What I like about this game is that it allows for students to play against each other or students in other schools. The games are very unique and appeal to all ages. Teachers set up classes, can monitor student achievement and set up competitions. It has free and paid subscriptions.