Basic Language Skills is an Orton-Gillingham based curriculum that is a structured, sequential, multi-sensory approach to teaching basic reading and spelling skills. The lessons provide focused instruction in phonemic awareness, letter recognition, decoding, spelling, fluency, comprehension, handwriting, vocabulary, and oral and written expression. The program is divided into three books that cover 169 concepts. The concepts are taught in a cumulative order and will be listed in the nine week period that they have been introduced. Mastery checks will be given after concept 25, 50, 76, 91, 105, 120, 137, 154 and 169.