CDIR: Cambridge Discovery Education Interactive Readers
2017/09/20
| Title | YL | Word Count | |
| CDIR1 | Blizzards: Killer Snowstorms | 1.6 | 1,339 |
| CDIR1 | Catch a Wave: The Story of Surfing | 1.6 | 1,772 |
| CDIR1 | Cool Jobs | 1.6 | 1,611 |
| CDIR1 | Crocs and Gators | 1.6 | 1,418 |
| CDIR1 | Drink Up! | 1.6 | 1,652 |
| CDIR1 | Eat Up! | 1.6 | 1,551 |
| CDIR1 | Fantastic Creatures: Monsters, Mermaids, and Wild Men | 1.6 | 1,587 |
| CDIR1 | Genius | 1.6 | 1,513 |
| CDIR1 | It's Time (To Learn About Time) | 1.6 | 1,523 |
| CDIR1 | Jeff Corwin: Wild Man | 1.6 | 1,660 |
| CDIR1 | Light in the Night: The Moon, A | 1.6 | 1,398 |
| CDIR1 | Paris: City of Light | 1.6 | 1,532 |
| CDIR1 | Saved! Heroes in Everyday Life | 1.6 | 1,509 |
| CDIR1 | So Cute! | 1.6 | 1,267 |
| CDIR1 | Traffic Jams: The Road Ahead | 1.6 | 1,490 |
| CDIR1 | Wild Australia! | 1.6 | 1,266 |
| CDIR2 | Alaska: Wild and Free | 2.0 | 1,715 |
| CDIR2 | Are You Listening? The Sense of Hearing | 2.0 | 1,577 |
| CDIR2 | Around Japan in Three Days | 2.0 | 1,309 |
| CDIR2 | Deadly Animals | 2.0 | 1,598 |
| CDIR2 | Do Not Disturb: The Importance of Sleep | 2.0 | 1,679 |
| CDIR2 | Fast: The Need for Speed | 2.0 | 1,797 |
| CDIR2 | Feeding Time: The Feeding Habits of Animals | 2.0 | 1,608 |
| CDIR2 | Growing Up: From Baby to Adult | 2.0 | 1,595 |
| CDIR2 | Life in Mumbai | 2.0 | 1,394 |
| CDIR2 | Lost: The Mystery of Amelia Earhart | 2.0 | 1,427 |
| CDIR2 | Shoot to Kill: Why We Hunt | 2.0 | 1,698 |
| CDIR2 | Slow Motion: Taking Your Time | 2.0 | 1,627 |
| CDIR2 | Stealing | 2.0 | 1,384 |
| CDIR2 | Wonders of the World | 2.0 | 1,626 |
| CDIR2 | Young and Amazing: Teens at the Top | 2.0 | 1,701 |
| CDIR2 | Your Dream Vacation | 2.0 | 1,511 |
| CDIR3 | Aliens: Is Anybody Out There? | 2.4 | 1,934 |
| CDIR3 | Empire: Rise and Fall | 2.4 | 1,869 |
| CDIR3 | Greatest Invention of All Time, The | 2.4 | 1,622 |
| CDIR3 | How Cool is Cold! | 2.4 | 1,956 |
| CDIR3 | Madagascar | 2.4 | 1,796 |
| CDIR3 | Magic of Music, The | 2.4 | 2,088 |
| CDIR3 | Medicine: Old and New | 2.4 | 2,011 |
| CDIR3 | Science of Heat, The | 2.4 | 1,881 |
| CDIR3 | Slice by Slice: The Story of Pizza | 2.4 | 1,804 |
| CDIR3 | Slime: The Wonderful World of Mucus | 2.4 | 1,727 |
| CDIR3 | Swing, Slither, Swim | 2.4 | 1,751 |
| CDIR3 | Three in One: The Challenge of the Triathlon | 2.4 | 1,949 |
| CDIR3 | Water: Vital for Life | 2.4 | 1,881 |
| CDIR3 | Weird Animals | 2.4 | 1,993 |
| CDIR3 | What Are the Odds? From Shark Attack to Lightning Strike | 2.4 | 2,014 |
| CDIR3 | What Makes a Place Special? Moscow, Egypt, Australia | 2.4 | 1,866 |
| CDIR4 | Bones: And the Stories They Tell | 2.8 | 2,353 |
| CDIR4 | Bright Lights on Broadway: Theaterland | 2.8 | 2,577 |
| CDIR4 | City Experiment: Rebuilding Greensburg, Kansas, The | 2.8 | 1,952 |
| CDIR4 | Dangerous and Dirty Jobs | 2.8 | 2,279 |
| CDIR4 | Life Online: The Digital Age | 2.8 | 2,344 |
| CDIR4 | Mummies and Myths | 2.8 | 2,387 |
| CDIR4 | On the Move: The Lives of Nomads | 2.8 | 2,688 |
| CDIR4 | Only in America | 2.8 | 2,381 |
| CDIR4 | Science of Darkness, The | 2.8 | 2,425 |
| CDIR4 | Science of Light, The | 2.8 | 2,670 |
| CDIR4 | Shark Attack | 2.8 | 2,445 |
| CDIR4 | Sport, Game, or Hobby? | 2.8 | 1,975 |
| CDIR4 | Sugar: Our Guilty Pleasure | 2.8 | 2,362 |
| CDIR4 | Survival Guide: Lost in the Mountains | 2.8 | 2,407 |
| CDIR4 | Sushi Nation | 2.8 | 2,377 |
| CDIR4 | Wheel, The | 2.8 | 2,358 |
| CDIR5 | Found: Discovery and Recovery | 3.2 | 2,647 |
| CDIR5 | Get Smart: Our Amazing Brain | 3.2 | 2,319 |
| CDIR5 | Life on the Edge: Extreme Homes | 3.2 | 2,893 |
| CDIR5 | Losing It: The Meaning of Loss | 3.2 | 2,802 |
| CDIR5 | Mark Your Territory | 3.2 | 2,736 |
| CDIR5 | Our Green Future | 3.2 | 2,573 |
| CDIR5 | Secrets to a Long Life | 3.2 | 2,805 |
| CDIR5 | Venice: The Floating City | 3.2 | 2,254 |
| CDIR5 | Weird Weapons | 3.2 | 2,539 |
| CDIR5 | What Are You Afraid of? Fears and Phobias | 3.2 | 2,480 |
| CDIR6 | Altruism: What's in it for Me? | 3.6 | 3,007 |
| CDIR6 | Deep Blue: Discovering the Sea | 3.6 | 2,730 |
| CDIR6 | Down to Earth | 3.6 | 2,685 |
| CDIR6 | Gold: Greed and Glory | 3.6 | 2,499 |
| CDIR6 | Placebo Effect: The Power of Positive Thinking, The | 3.6 | 2,710 |
| CDIR6 | Punch: All About Boxing | 3.6 | 3,056 |
| CDIR6 | Rescued: The Chilean Mining Accident | 3.6 | 2,853 |
| CDIR6 | Traditions of Death, The | 3.6 | 2,686 |
| CDIR6 | True Colors | 3.6 | 2,729 |
| CDIR6 | Up in the Air: Our Fight Against Gravity | 3.6 | 2,810 |
| CDIR7 | Bounce! The Wonderful World of Rubber | 4.0 | 2,767 |
| CDIR7 | Bucket List, The | 4.0 | 2,891 |
| CDIR7 | Skin | 4.0 | 2,658 |
| CDIR7 | Tragedy on the Slopes | 4.0 | 2,466 |
| CDIR7 | Turtles: Ancient Symbol / Modern Survivor | 4.0 | 2,673 |
| CDIR7 | Water Power: The Greatest Force on Earth | 4.0 | 2,479 |
| CDIR8 | Avalanche! | 4.4 | 2,579 |
| CDIR8 | Lift Off: Exploring the Universe | 4.4 | 2,880 |
| CDIR8 | Money Tree: The Business of Organics | 4.4 | 2,821 |
| CDIR8 | Poison: Medicine, Murder, and Mystery | 4.4 | 2,844 |
| CDIR8 | Robots: The Next Generation? | 4.4 | 2,691 |
| CDIR8 | Trapped! The Aron Ralston Story | 4.4 | 2,978 |