Level A
Level B
Level C
Level A Answer Sheet
All Kinds of Faces
Baby Animals
Bird Goes Home
Carlos Counts Kittens
Carlos Goes to School
Forest, The
Fruit
Fruit Colors
Getting Dressed
Going Places
Hamster Home
He Runs
Hot and Cold
I Can
I Save Money
I Set the Table
In and Out
Maria Counts Pumpkins
Maria Goes to School
Mom and I
My Body
My Dog
My Face
My Hair
My Room
Opposites
Pond Animals
Rabbits
The Rainstorm
These Shoes
This Is My Bear
Up and Down
We Can Make Sounds
What I Like
What Lives Here?
Level B Answer Sheet
Animal Coverings
Animal Sounds
Animals Can Move
Applesauce
Bananas Sometimes
Carlos and His Teacher
Games We Play
Go Animals Go
Gracie's Nose
How Many Legs?
I Love the Earth
I Pick Up
I Read a Book
It Is School Time
It Is Spring
Maria and Her Teacher
Near and Far Away
New Forest Path, The
On the Farm
Paint It Purple
Picnic, The
Playful Puppy
Pond Life
Taking the Bus
Three Baby Birds
Two Little Dicky Birds
We Make Cookies
We Pack a Picnic
What Has These Feet?
What Has These Spots?
What Has These Stripes?
What Has This Tail?
Where Is Water?
Where?
Winter Fun
You and I
You Can Go
Level C Answer Sheet
Allie and Ollie
Animals of Canada, The
Birthday Party
Busy At School
Different Kinds of Sharks
Fall
Feelings
Get In
Go Away, Lily
Going Away
How Frogs Grow
How Many Wheels?
How Many?
I Can Be
I Looked Everywhere
I Won't
I Wonder
Jack and Lily's Favorite Food
Lucy Did It
Making Salsa!
Mongo and Cutie
Open and Close
Rocks
Sherman Sure Is Shy
Space
Taking Turns
Tools
We Count
We Make a Snowman
What Animals Eat
What Do I Wear?
What I Want
What Is at the Zoo?
When Is Nighttime?
Who, Who, Who?
Woodsy Band Jam, The
Yummy, Yummy
Level D
Level E
Level F
Level D Answer Sheet
Animal Tongues
Busy Pond, The
Caretakers
Clouds
Community Helpers
Country Places
Dollars and Cents
Frog Is Hungry
Getting Around the City
Grow, Vegetables, Grow!
I Count 100 Things
I Like My Hair
I Need An Eraser
Lily the Cat
Little Loon
Maria's Halloween
Mitten, The
My Neighborhood
My New School
No, Lily, Don't!
Our Good Night Story
Polly Gets Out
Senses
Sky High!
Sky Is Falling, The
Team, The
To the Store
To the Woods
We Give Away
Welcome Back, Butterflies
What Do You See?
What?
Where Animals Live
Where Plants Grow
Why Can't I?
Workers
Level E Answer Sheet
A Sweet Tale
All Kinds of Factories
All Kinds of Farms
Animals, Animals
Bear and Kangaroo
Carlos's First Halloween
City Animals
City Places
Contest, The
Country Animals
Doctor Jen
Four Seasons, The
Getting Ready for School
Grandparents Day
Happy Birthday, Snag!
Hooray for the Farmer's Market!
Hugs
I'd Like To Be
In the Mountains
Let's Make Lemonade
Maddy Loves to March
Make a Tree Friend
Making Pizza
Nothing for Father's Day
Places Plants and Animals Live
Police Officers
Shapes in Tide Pools
Shoes Men Wear
Shoes Women Wear
Storm, The
Time For Bed
Too Much Work!
Vet, The
Week With Grandpa, A
What Is in the Box?
What's for Dinner?
When I Grow Up
Level F Answer Sheet
Best of Friends
Changing Seasons
Clown Face, A
Community Workers
Does It Sink or Float?
Farm Friends
Firefighters
Fishing with Grandpa
Food Chain, The
Friends in the Stars
Gaggle, Herd, and Murder
Glassblowing
Hibernation
Hide and Seek with Zog
How Do They Move?
How Is the Weather Today?
How to Make a Snow Person
In a Chinese Garden
Jobs for James
Josh Gets Glasses
Monster Reading Buddies
Mother's Day
Needs and Wants
Night Animals
Our Camping Trip
Pet for Jupe, A
Scaredy Crow
Smart Crows
Snowstorm, The
Taste This
Thank You, Everyone!
Three Little Pigs, The
Trucking
Using Less Energy
Weird White House Pets
Where Is Cub?
Level G
Level H
Level I
Level G Answer Sheet
Animal Eyes
Ants, Ants, and More Ants
Beanie and the Missing Bear
Billy Gets Lost
Bonk's Bad Dream
Bonk's Loose Tooth
Camel and the Pig, The
Carlos Joins the Team
Chase, The
Dogs at Work
Food We Eat, The
Going to the Dentist
Gordon Finds His Way
Groundhog Goes Outside
Grow Tomatoes in Six Steps
How Many Rhymes?
I Bet I Can
Let's Go to the Circus!
Little Red Hen, The
Long Ago and Today
Maria Joins the Team
Monster Halloween
Monsters' Stormy Day
My Day
New Rule!
Penny the Rude Penguin
Places People Live
Queen Ant's Birthday, The
Rock Hunting
Rude Robot
Seed Grows, A
Signs Are Everywhere
This Is a Bird
Troll Bridge
What in the World Is That?
Whose Eggs Are These?
Level H Answer Sheet
A Desert Counting Book
Animals, Animals
Anna and the Dancing Goose
At a Touch Tank
Butterfly Café
Carlos's First Thanksgiving
Club Monster
Cool as a Cuke
Day I Needed Help, The
Earth's Water
Friends Around the World
Goats Are Great!
Grasshopper's Gross Lunch
How the Mice Beat the Men
I Live in the City
I'd Like To Be
Legs, Wings, Fins, and Flippers
Maria's Thanksgiving
Math Test Mix-Up
Monster Fish Tale, A
Monsters on Wheels
Moose on the Move
Nami's Gifts
Our Five Senses
Owl and the Pussycat, The
Pip, the Monster Princess
Police Officers
Sam's Fourth of July
Ships and Boats
Smaller and Smaller
Spring Is Here
Summer Olympics Events
Tag-Along Goat
Terell's Taste Buds
Weird Bird Beaks
Wing's Visit to Singapore
Level I Answer Sheet
100th Day Project, The
Alistair's Night
Arthur's Bad News Day
Birds
Bonk and the Big Splash
Bonk and the Lucky Buckeye
Broken Leg for Bonk, A
Building a Bridge
Camping with Bonk
Childhood Stories of George Washington
Discovering Dinosaurs
Extreme Insects
Families
Fantastic Flying Machines
Goldilocks and the Other Three Bears
Goldilocks and the Three Bears
Healthy Me
Hibernation
Hippo's Toothache
How Glooskap Found Summer
How to Make Paper
Is That a Fish?
Jane Goodall
Life at the Pond
Magic Bike, The
Mike's Good Bad Day
Monster Moving Day
Monster Music
Monster Pumpkins, The
Monster Snow Day
Monster Soccer
Soup and a Sandwish
Three Little Pigs, The
Tian Tian, a Giant Panda
Visit to the Zoo, A
We Make Maple Syrup
Why Robins Hop
Winter Vacation
Level J
Level K
Level L
Level J Answer Sheet
Animal Skeletons
Being Bilingual
Bonk at the Barbershop
Bonk's New Bike
Bonk, the Healthy Monster
Broken Arm Blues
Can You Say Pterodactyl?
Changes
Cinnamon Bun Mystery, The
Darby's Birthday Party
Disappearing Moon, The
Feliz Navidad, Carlos!
Firefighters
Garrett Morgan and the Traffic Signal
Going to the Art Museum
Hannah's Townspeople
Heroes of September 11
I'm the Tall One
It's Cinco de Mayo, Carlos!
Leopard, Ram, and Jackal
Let's Make Shapes!
Monster Cowboy
Number Twelve
Ocean Animals
Riding With Rosa Parks
Safe Biking with Dad
Sharks
Story of the Statue, The
Thanksgiving the Jacks Built, The
Thanksgiving the Other Jacks Built, The
Uzzle, The Football Star
Welcome, Carlos!
What Pet Should You Get?
When Bad Things Happen
Whose Tracks Are These?
Wonders of Nature
Level K Answer Sheet
All About Kites
Animals, Animals
Anna and the Magic Coat
Barack Obama
Carlos's Family Celebration
Chickens in My Backyard
Extreme Animals
Fishing in the Rain
Flying Kites
Friends Around the World
How Glooskap Found Summer
How Zebras Got Their Stripes
Hugs for Daddy
I Fly Hot-Air Balloons
I Love City Parks
I'd Like To Be
I'm Allergic to Peanuts
It's About Time
Lance and His Bicycle
Leap! A Salmon's Story
Maria's Family Celebration
Migrating Geese
Playing It Safe
Police Officers
Ratty Rats
Sam's Fourth of July
Ships and Boats
Simple Machines
Slithery and Slimy
Squire's Bride, The
Strange Plants
Summer Olympics Events
To the Circus
To the Pumpkin Patch
Where We Get Energy
Level L Answer Sheet
100th Day Project, The
Ancient Egypt
Anna and the Painted Eggs
At Jacob's House
Big Machines
Catching Santa
Colonial Life
Crocs and Gators
Deep in the Ocean
Eggy's Easy Out
Every Dog Has Its Day
Fantastic Flying Machines
George Washington Carver
Goldilocks and the Other Three Bears
Goldilocks and the Three Bears
How Animals Sleep
How to Make Ice Cream
How We Measure
I'm the Guest
Igloo, The
Independence Day
Insect Life Cycle
Introducing Planet Earth
Jane Goodall
Jessica Loves Soccer
Joey's Stop Sign
Maria's Family Christmas
Noise in the Night
Oil: A Messy Resource
Power of Magnets, The
Sending Messages
Shoes Around the World
Sign Language and Hand Talk
Smelly Clyde
Tinosaur, The
Two Thanksgivings
Valentine's Day
Wonderful Winter
World Holidays
Level M
Level N
Level O
Level M Answer Sheet
Aesop's Fables
Art Around Us
Arthur's Bad News Day
Best Guess, The
Day Before Thanksgiving, The
Dogs at Work
Endangered Birds
Firefighters
Frogs and Toads
Giant's Tale
Hermit Crabs
Hibernation
Hoppers Start School, The
How Much Is a Trillion?
How to Make Lemonade
Inside Your Body
Jack's Tale
Keb Needs a Home
Legend of John Henry, The
Man of Vision, A
Marcus Loses Patches
Martin Luther King Jr.
Mighty Glaciers
Prairie Dog's Life, A
Sharks
Sleeping Dog, The
Snow Camping
Sometimes Friend, The
Sound All Around
Story of Jeans, The
Story of the Statue, The
Story of the Sun
Three Little Pigs, The
Umbrella Trick, The
Vacation Time!
You Stink!
Level N Answer Sheet
All About Kites
Bedbugs Bite!
Beyond the Five Senses
Buffalo Hunt, The
Celebrating Food and Family
Colleen and the Leprechaun
Coral Reefs
Critter Crossings
Crows Share a Pie
Elephants
Extreme Animals
Fishing Derby, The
Force of Water, The
Horseshoes Aren't Just for Good Luck
Introducing the Penny
Let's Make Snowflakes!
Luna Has Nothing to Wear
Making Rice
Memorial Day
Mount Rushmore
Mystery Wind, The
Owen and the Tortoise
Puppets
Raven and the Flood
Sam's Fourth of July
Sammy Stuffit
Secret Lives of Snails and Slugs, The
Shepherd and the Fairy, The
Sparky's Mystery Fortune
St. Patrick's Day Mystery, The
Totem Poles
UpDown Boy, The
Watching Earth From Space
Weird Bird Beaks
Level O Answer Sheet
All About Chocolate
Anansi and the Talking Watermelon
Backpack Tax, The
Baltic Rescue
Barack Obama
Bats
Beekeeper, The
Dog's Tale, A
George Washington Carver
HeroRATs: Rats Who Save Lives
Irma's Sandwich Shop
Jane Goodall
Jenny Loves Yoga
Johnny Appleseed Heads West
Katie's Forest Finds
Li's Tangram Animals
Little Red's Secret Sauce
Magic of Migration, The
Makusani's Lesson
Meeting Father in Plymouth
Paul Bunyan and Babe the Blue Ox
Pecos Bill Rides a Tornado
Pepper: The King of Spices
Pluto's New Friends
Rainy-Day Savings
Sally Ride
Salt Rocks!
Saving the Last Wild Tigers
Scotty's Spring Training
Shadow People, The
Spider Monkey's Question
Summer Olympics Legends
Three Little Pigs: The Wolf's Story
Troika: Canine Superhero
Whales
Wonders of Nature
You're a Jellyfish!
Level P
Level Q
Level R
Level P Answer Sheet
100th Day Project, The
About Trees
Acropolis Adventure
Art Around Us
Becky's Puzzle Problem
Breeds of Dogs
Coyote and the Star
Daniel Boone
Deep Inside a Copper Mine
Desert People
Dogs at Work
Fantastic Flying Machines
Friends Around the World
Giant Pandas
Golden Tragedy, A
Goldilocks and the Other Three Bears
Goldilocks and the Three Bears
Helen Keller
History to Chew On
Homework Lesson, The
I Am the Hope Diamond
Inside the Beast
Landon's Pumpkins
Late Night Chat with a Parakeet, A
Magnetism
Manatees
Martin Luther King Jr.
Max
Mona Lisa Mystery, The
Musical Instruments
Nation on Wheels, A
Seals, Sea Lions, and Walruses
Shelter Pets Are Best
Sonia Joins the Supreme Court
State Hermitage: Russia's Amazing Museum, The
Steam Engine, The
Story of the Statue, The
Women of the Supreme Court
World Cup Soccer
Level Q Answer Sheet
Amelia Earhart: A Legend in Flight
Arthur's Bad News Day
Castaway Pines, The
Castles
Chili Pepper Powder Surprise
Chinzaemon the Silent
Coral Reefs
Earthquakes, Volcanoes, and Tsunamis
Eleventeen
Emily
Extreme Animals
Famous First Ladies
Fireworks
First Day of School
Footprint, The
Golden Flute, The
Horseshoes Aren't Just for Good Luck
How Glooskap Found Summer
Legend of Nessie, The
Little Fir Tree, The
Mermaid in a Teacup
Mike Van Zee, Special Olympian
Morty and the Oatmeal Babysitter
Morty and the Suitcase Caper
Morty and the Teacher's Apples
My Earth Day Birthday
Mystery at Camp White Cloud
New Soccer Ball, The
On Eagle River
Plight of the Polar Bear
Robin Hood and the King
Salmon: A Link in the Food Chain
Sharks
SPRAK!
Summer Olympics Events
Sweet Potato Challenge
Three-R Plan, The
Vincent's Bedroom
Visit to Kitt Peak, A
Walking in Roman Footsteps
Zookeeping
Level R Answer Sheet
Alaska: The Last Frontier
All About Kites
Apple a Day, An
Arrows
Bessie Coleman
Charlene's Sea of Cortez Journal
Charly Dances 'til It Drops
Charly Did It
Charly's New Year's Revolution
Expedition 25: The Subtropics
Expedition 40: The Secret of the Seasons
Expedition 60: The Subarctic
Expedition Zero
Explorer's Guide to World Weather
Fishing in Simplicity
Foods Around the World
George Washington Carver
Glow-in-the-Dark Animals
Going to the Super Bowl
Hard Stuff! All About Bones, The
How the Robin Stole Fire
Inventions
Morty's Roadside Refreshments
Mozart
Murdoch's Path
Neighborhood Mystery
Olympics: Past and Present, The
Only One Aunt Maggie
Raining Cats, Dogs, and Other Animals
Rattlers
Robin Hood Wins the Sheriff's Golden Arrow
Sea Turtles
September 11: Always Remember
Ships and Boats
Skydiving
Speed
Storm Chasers
Thesaurus, The
Treasure Found
Turtle Tom
Two Artists: Vermeer's Forger
We're in Business
Weird Bird Beaks
Wildlife Rescue
Wonders of Nature
Level S
Level T
Level U
Level S Answer Sheet
Animals Feel Emotions
Barack Obama
Bears
Big League for Little Players, A
Bites and Stings
Building Big Dreams
Butterflies and Moths
Chef Morty's Party Surprise
Gems: Treasures from the Earth
Ghosts in the House
Harold the Dummy
Harriet Tubman and the Underground Railroad
How Little John Joined Robin Hood
International T-Shirt Challenge, The
Let a Smiley Face Be Your Umbrella
Let's Make Vegetable Soup
Losing Grandpa
Making Mosaics
Martin Luther King Jr.
Monkey Business
Moon Bowl, The
Morty and the Fancy-Pants Wedding
Morty and the Mousetown Talent Show
National Parks
Our Solar System
Penguins
Searching for the Loch Ness Monster
Selection From Alice in Wonderland, A
Seven Wonders of the Modern World
Snakebite!
Titanic: Lost and Found, The
Trouble with English, The
Tsunamis
Two Kettles
Volcanoes
What the Boys Found
What's in a Name?
Wheeling the Snake
Woolly and Fang
Level T Answer Sheet
Adventures with Abuela
Aladdin and the Wonderful Lamp
Albert Einstein
Alice's Birthday Cake
Ants in My Bed
Art Around Us
Bats in the Attic
Black Stones, The
C Is for Canada
Cali and Wanda Lou
Camouflage
Caribou Man
Carlos's Puzzle
Cathy Freeman
Desert People
Deserts Dry
Drums and Drumming
Earthquakes, Volcanoes, and Tsunamis
Holidays Around the World
Horseshoes Aren't Just for Good Luck
InFLUenza
Lance Armstrong
Lighter Than Air
Money in the USA
Morty and the Mousetown Gazette
My Secret Internet Friend
Mysteries of the Lost Civilization
Remembering the Alamo
Ricardo's Dilemma
Running for Freedom
Sally's Secret Ambition
Severe Weather
Ships of Discovery
Special Effects
Titanic Treasure
Trip to a Prehistoric Cave, A
Vikings
Weave it!
Yee Haw! The Real Lives of the Cowboys
Level U Answer Sheet
All About Chocolate
Amazing Amazon, The
Arrows
Australia
Bill of Rights, The
Coral Reefs
Deep Trouble: The Gulf Coast Oil Spill
Don't Wake the Mummy
Galapagos Wonder
Get Moving! All About Muscles
Great Gallardo's Books, The
Growing Up Green
Hard Stuff! All About Bones, The
How Sound Works
How to Build a Greenhouse
Hubble: An Out-of-This-World Telescope
Inuit: Northern Living, The
Jr. Iditarod, The
Jupiter's Secrets Revealed
Meteors and Meteorites
Mighty Saguaro Cactus, The
Mystery in the Moonlight
Page's School Report
Pirate Ships and Flags
Robin Hood Wins the Sheriff's Golden Arrow
Samson: A Horse Story
Seven Wonders You Can Visit
Tanya's Money Problem
Thomas Edison
Veterans Day
Weaving Around the World
Wildlife Rescue
Yellow Brick Roadies
Level V
Level W
Level X
Level V Answer Sheet
Adventure on the Amazon River
Alternative Fuel Cars
Ancient Cliff Dwellers
Battle of the Alamo, The
Book of Blood
Calgary Stampede, The
Case of the Vanishing Anasazi, The
Eclipses
Everest: On Top of the World
Female Sports Stars
Fungus Among Us
Gems: Treasures from the Earth
Giant Insects
Gossip Monster, The
How Little John Joined Robin Hood
In the Name of Discovery
Jazz Greats
Last Great Race, The
Lost Dutchman, The
Mexico's Fight for Independence
Mirroring Miranda
Mysterious Caves
Natural Wonders of the World
Roman Empire Faces Attila, The
Sister Sleuth and the Silver Blaze
Sun, The
Treasure in the Puget Sound
Tuskegee Airmen, The
Two Kettles
Volcanoes
Word Smith, Private I
Yosemite and the Badge
Level W Answer Sheet
Acropolis Adventure
Adventure in Bear Valley
Albert Einstein
Alberto Salazar: An American Runner
American Sports Legends
Ben Franklin
Black Stones, The
Catching Air
Climbing Mountains: An Interview with Erik Weihenmayer
Desert People
Discovery in the Americas?
Earthquakes, Volcanoes, and Tsunamis
Electric Cars: History and Future
Hurricanes
InFLUenza
Joe Kittinger: An Unsung Hero
Mapping the Woods: Maps and Cartography
Microbes: Friend or Foe?
Miguel in the Secret Garden
Mummies
Mystery of Granville Library, The
Ocean Quiz
Olympics: Past and Present, The
Otzi: The Iceman
Pirates and Privateers
Robin Hood and the King
Scratching a Good Story
Ships of Discovery
Threats to Our Atmosphere
To Drill or Not to Drill?
Vikings
World of NASCAR, The
Yanomami: Deep in the Amazon, The
Level X Answer Sheet
Algonquins, The
Amazing Undersea Food Web, The
Blues: More Than A Feeling, The
Body Art
Dust Bowl Disaster
Early Moments in Rock Music History
Eruption of Mount Shasta, The
Grandpa Smoke Jumper
Hard Stuff! All About Bones, The
High-Speed Trains
Internet, The
Jacey Nova: Starship Pilot
Malik Had a House
Meeting Mrs. Pierce
Miguel and King Arthur
Money, Money, Money
Mongol Empire, The
Reef, The
Rosalind Franklin's Beautiful Twist
Saving the Salmon
School Versus James Holt, The
Seeds of Revolution
Seeing the Evidence: Forensic Scientists at Work
Story of Immigration, The
Talking to Each Other
The Gettysburg Address
Transcontinental Railroad, The
Up From Slavery
What Makes You, You?
Wildlife Rescue
Your Road to the White House
Zoos: Pro or Con?
Level Y
Level Z
Level Y Answer Sheet
9/11: A Dark Day
Arrows
Art of Photography, The
Battling for Independence
Believe It or Not?
Biomimicry
Born on Sable Island
Escape from the Holocaust
Fast Forward to the Future
Firefighter, The
Gems: Treasures from the Earth
Haidas, The
How Little John Joined Robin Hood
In Huck's Shoes
Leaving Home
Legacy of da Vinci, The
Life of Cesar Chavez, The
Marco Polo and the Silk Road
Meegor and the Master
Miltie Math-head Takes the Mound
Miltie Math-head: Football Hero?
Mystery Twin, The
Odysseus and the Bag of Winds
Plate Tectonics
Prehistoric Giants (Other Than Dinosaurs)
Protests and Uprisings
Robin Hood Wins the Sheriff's Golden Arrow
Samuel de Champlain, Father of New France
Seven Billion and Counting
Ships of Discovery
Story of Lewis and Clark Book 1: Up the Missouri River, The
Story of Lewis and Clark Book 2: To the Pacific Ocean, The
Two Kettles
What Do You Think About Climate Change?
Level Z Answer Sheet
Abraham Lincoln: From Log Cabin to the White House
Acropolis Adventure
Adaptive Athletes
Albert Einstein
Apaches, The
Black Stones, The
Building a Nation
Cherokees, The
Cheyennes, The
Christopher Columbus
Ella Fitzgerald
Energy Sources: The Pros and Cons
Genetics at Work
Great City Fires
Historic Peacemakers
InFLUenza
Leo the Lion
M Is for Mexico
Message, The
Microbes: Friend or Foe?
Mystery of King Tut, The
Native Americans of the Great Plains
Olympics: Past and Present, The
Prairies Alive!
Private Spaceships
Robin Hood and the King
Satellites
Selection From Robinson Crusoe, A
Success Stories
Symbiotic Wildlife
Telescopes: Eyes on Space
Vikings
Volcanoes
Word Smith, Private I "Rhyme Crime"
Zoos Through the Ages
