"126 page free downloadable PDF book for grade 4-7 teachers showing how KenKen puzzles can turn mathematical problem solving into fun and how student motivation can be dramatically increased"
"Activities and worksheets designed to provide additional skill review, informal pencil-and-paper assessment, preparation for standardized testing, and differentiated instruction. Includes student pages, answer keys, and a complete listing of the student pages grouped by skill. Available as a free pdf download in English and Spanish"