How I Use It
The K-3 students in my technology class love going to Sumdog when they finish their required assignments. I also know from feedback given to me by their classroom teachers that they seek out Sumdog in the class and at home. As it is aligned to Common Core and adjusts up and down to a student's skill level, it is a great resource for providing differentiated practice. Students enjoy the gamification of learning--they earn coins for each game they play, and can use those coins to customize their avatar. We use only the free version, which included only math games--a paid version allows for a few additional math games as well as reading and writing activities. There is some ability to get reports about student performance in the free version--it is much more robust in the paid one. For my purposes, I find that what is included in the free version is more than adequate.
Sumdog is highly engaging, but also allows for targeted review of math skills. It isn't a substitute for something like Khan Academy--it doesn't really provide instruction or support. However, it does provide the opportunity for practice of skills already learned. Setting up students with logins is easy and the site is fairly easy to navigate. Some students said that the start page was a little "busy", but they were able to find what they were looking for. In previous years, we used Sokikom for the same purposes, but find that Sumdog is more cost-effective, even at the paid level. This tool won't dive deep into content, but it definitely catches and hold student attention. Highly recommended.