Letters Sounds 1 Phonics Seatwork Text Teacher Edition Author:Naomi Sleeth, Lynelle DeKok, Shela Conrad Letters & Sounds 1 is the most complete phonics seatwork book available. Each phonics element necessary for learning to read is systematically reviewed in an appealing way. The many puzzles,riddles,exercises, and illustrations are designed to each word analysis skills, build vocabulary, and increase reading comprehension.