DDI is a developer and publisher of digital tools for struggling students, especially English Language Learners. DDI's flagship program, HELP Math, funded by the U.S. Department of Education (DOE) and approved by their "What Works Clearinghouse", individualizes instruction by adapting to each learners needs. HELP Math is represented exclusively by Sunburst Digital for K-12 sales, marketing in the U.S., Canada, and Mexico