This eBook, "The Big Book of Timmy - Middle School Math," contains 122 bell ringers with answers and detailed explanations. Explore the adventures of Timmy as he tackles the Common Core math standards of 6th through 8th grade as he travels from the beaches of Cape Cod to the ski slopes of Vail, Colorado. Includes at least one question for each math standard of grades 6-8. This eBook provides problems that are perfect for warm up "bell ringers" for your students. This eBook is a 60 page PDF document.