Renaissance Learning offers a technical approach to education. The company's educational software, designed for grades pre-K through 12, includes its flagship Accelerated Reader program, as well as applications for writing, math, and early literacy. It also markets portable computing devices pre-loaded with software to improve writing skills. The company works with schools to coordinate programs with core curriculum, provide management tools for teachers, and help personalize practice exercises for students. Renaissance offers such related professional services as training and systems integration. About 30% of US school use Renaissance products. The company, which operates worldwide, is owned by private equity firm Hellman & Friedman.