The AGS Pre-Algebra Teacher’s Edition is a hardcover textbook authored by Siegfried Haenisch, published by American Guidance Service, Incorporated in 2004. This textbook is designed for intermediate level secondary education students and provides a comprehensive covering of pre-algebra concepts. The teacher’s edition includes additional features and resources for educators to assist in teaching and preparing lesson plans. The book is written in English and offers a valuable resource for both students and instructors looking to enhance their understanding of pre-algebra.