IXL Learning is a math practice Web site tailored for state and now Common Core standards. Like most math practice tools and games, it also generates progress reports on student proficiency for parents and teachers. As of Fall of 2013, IXL launched language arts content for grades 2-5, as well as an iPhone app for their math content.

Covering 2,000 skills across early math through algebra, IXL allows students to choose skills to practice (with the program adjusting its level of difficulty according to the student’s performance). It also has a different themed game board for each grade level with “challenges” and virtual prizes that students can earn as they work their way through, though its games are not as richly illustrated or engaging as others on the market. For pre-K, kindergarten and first grade, where students are learning to read, there is an audio feature that reads the prompts to them instead.

As of October 2012, the company reported over 3 million subscribed users.

Some limited site content is available for free, while a student or classroom subscription is required to access progress reports and a deeper library of content. Teacher licenses start at $249 per year.