I love this book because it involves something that every child loves - candy! This would be a great book that I could use for younger students in Pre-K through 1st grade. This book focuses on counting pieces of candy, as well as small word problems of addition and subtraction. It would be a fun activity to extend from this book by allowing the students to count real candy and manipulate them for a hands-on experience. Then the students can have a tasty treat after the lesson! For a Pre-K or Kindergarten class I would use this to teach counting, but for 1st grade I would incorporate counting as well as addition and subtraction. I think this would be a fun activity that all students will enjoy.