Students (or parents) can choose which of the 4 operations to practice (or practice them mixed) and can set which numbers are being used as well. There are two "race modes" . One is timed, where the other allows the student as much time as they need.
The following screen shot shows one of the courses. The blue box in the lower right corner is where the problem appears it then starts moving across the screen toward the white box. If the student enters the wrong answer or no answer the problem and answer will come up on the screen and there is audio as well. I like the audio/visual reinforcement.
At the end of each ride there is a bar graph that you can mouse over. It will tell how long it took you to answer each fact and it you are going slower than your last ride it will tell you that as well.
Statistics are available that shows which facts have been mastered and also gives a list of facts that the student is struggling with. You can also see their progress at a quick glance on the bottom right.
Part of the fun factor of Math Rider is the quests. In Quest mode, students follow a story (finding medicine for your sick mother, save a princess etc) and work their way through The Mathlands. They can see this map to see how they are progressing. As students complete quests they earn "rewards". There is a magical element to this program It wasn't a problem for us, but I thought it was worth mentioning.
Watch this video for a good overview:
My elementary students have been using this daily as a part of their math learning.
Overall, Math Rider is a fun way for your child to learn their math facts while you easily monitor their progress. I highly recommend it. You can also try it free for 7 days.