The Level 1 Teacher's Manual focuses on addition while developing many related skills. Each of the 52 lessons begins with a measurable objective and includes a clear teaching activity, numerous optional games, activities and ideas for teacher made supplemental materials. Added sections such as "special problems" and "older students" assist the educator in adapting the program to the spectrum of learning challenges. Available Fall 2005, the Second Edition Level One Teacher's Manual has been revised by the original author. Letter to the Reader Semple Math is a complete, basic-skills mathematics program for students of all ages and all learning abilities. We use a carefully ordered sequence of associative mnemonics in order to embed an accurate understanding of math concepts and skills in the long-term memory of our students, hence the expression, "Simply Unforgettable." We do not ask students to memorize math facts through repetition. We do not use learning by rote methods that teach only to a student's short-term memory. We have never encountered a math program or a supplemental material based entirely on learning by association, nor have we ever encountered a program that has enjoyed our level of success with all students across the learning spectrum. Now in its 25th year, the program has undergone both a business reorganization and a long-awaited revision of the Level One Teacher's Manual by the original author, Jan Semple. Semple Math materials were formerly distributed by Stevenson Learning Skills, Inc. Moving forward, Semple Math, Inc., a new company founded by members of the Semple family, will actively market our program while safeguarding the integrity ofthis tried and true process. For more information please visit us at www.semplemath.com William W. Semple President and Co-founder Semple Math, Inc.