"The primary curriculum in English (yellow book) is typically used in grades 1-3. It can also be used with individual students or small groups in higher grades for remedial work on specific skills. The revised English Primary Curriculum adds additional teacher instructions, including optional hand motions for some skills, and also includes correct responses to enable the teacher to present the lesson at a consistent, quick pace. We have also added a table in the preface section to show how the curriculum aligns with the Common Core State Standards for Phonological Awareness (Grade 1)."--Publisher's website.