IXL is a great app/website for students to practice math skills.
I really like this product as a tool to help all of my students. It has the capability of starting out at a low level and progressing with the student as they gain confidence and master the concepts that they worked on.
How I Use It
I require all my students to utilize IXL at least 20 minutes per day. They are allowed to utilize it more than that if they desire.
I also use a reward system to motivate the students.