Wilson® is a leader in foundational literacy instruction for all students. Fundations® uses an evidence-based approach to instruction, emphasizing decoding, encoding, and handwriting skills. Founded on the principles of the science of reading, it explicitly teaches foundational skills to K-3 students. Using a structured literacy approach to make learning to read fun while laying the groundwork for lifelong literacy, it is appropriate for Tier 1 instruction and Tier 2 intervention. Fundations is designed to be used in combination with a core or literature-based language arts program.