BEVERLY HILLS, CA MARCH 28: Chelsea Frei attends the 30th Annual Phase 4 Essentials Classroom Kit. Includes six copies of every title. Combines fiction and non fiction from two matched sets for variety. Expands existing decodable readers collections. Two sets follow the same scope and sequence for consistency. Second set adds further variety to titles. Introduces 38 adjacent consonant blends for practice. Text uses only decodable regular words per weekly progression plus tricky words. Strictly controlled vocabulary follows a letter by letter progression.