"Maths World is a theme park where children have fun as well as learn mathematics. Keith and his friends, Wei Ling, Bala, and Siti visit the theme park and start to explore some of the areas. Sorting plays an important role in mathematics. This book involves sorting using a variety of ways. For example,...

Age Range: 6 - 10 years Grade Level: 2 - 3 Paperback: 40 pages Publisher: HarperCollins (September 14, 2004) Language: English Product Dimensions: 10 x 8 inches Treasure Map (Mapping): Buried treasure! Matthew can't wait to tell his friends in the Elm Street Kids' Club about the cool map he found. It's...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 470L Paperback: 40 pages Publisher: HarperCollins (August 22, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches When Bob and Hannah split something, the two pieces had better be symmetrical--exactly the same. BUt to fly their kite,...

Age Range: 4 - 8 years Grade Level: Preschool - 2 Lexile Measure: AD480L Paperback: 40 pages Publisher: HarperCollins; 1 edition (August 21, 2001) Language: English Product Dimensions: 10 x 8 inches It's slimy. It's smelly. Its green and it's gooey. It's seaweed soup -- and its Turtle's favorite lunch!...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 380L Paperback: 40 pages Publisher: HarperCollins (December 26, 2000) Language: English Product Dimensions: 8 x 10 inches Shark Swimathon (Subtracting Two-Digit Numbers): The Ocean City Sharks swim team Gill, Fin, Stripes, Tiny, and the hammerhead...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 280L Paperback: 40 pages Publisher: HarperCollins; 1 edition (December 25, 2000) Language: English Product Dimensions: 9.8 x 8 inches Nothing goes right for Jack all day long. He can't find his favorite sneakers, he spills milk on his math homework,...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Lexile Measure: 420 Paperback: 40 pages Publisher: HarperCollins (December 26, 2000) Language: English Product Dimensions: 9.8 x 8 inches Missing Mittens Every animal on Farmer Bill's farm is missing one mitten. Readers can investigate odd and even numbers...

Age Range: 6 - 10 years Grade Level: 2 - 02 Lexile Measure: 390L Paperback: 40 pages Publisher: GREAT SOURCE; 1 edition (August 22, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Game Time! (Time): Last year, the Falcons were the soccer league champs. Can the Huskies beat them this...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 150L Paperback: 40 pages Publisher: HarperCollins; MathStart 2 edition (August 21, 2001) Language: English Product Dimensions: 10 x 0.1 x 8 inches Captain Invincible and his intrepid space-dog, Comet, are on a perilous journey back to Earth!...

Age Range: 4 - 8 years Grade Level: Preschool and up Lexile Measure: 170L Paperback: 40 pages Publisher: HarperCollins (August 22, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Monster Musical Chairs Every time the music stops, one more monster is OUT! Kids won't be able to sit still...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 400L Paperback: 40 pages Publisher: HarperCollins; English Language edition (January 5, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Dave's Down-to-Earth Rock Shop (Classifying): Budding geologists Josh and Amy are crazy about...

Age Range: 4 - 8 years Grade Level: Preschool - 2 Lexile Measure: AD360L Paperback: 40 pages Publisher: GREAT SOURCE; 1 edition (November 15, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches The yellow cars beep! The red cars vroom! As Molly plays with her big brothers toy cars, readers...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 90L Paperback: 40 pages Publisher: HarperCollins (August 25, 1999) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Monkeys ride in 2s, tumble by 3s, and march in 4s -- and readers can count them up as the parade goes by!

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 570L Paperback: 40 pages Publisher: HarperCollins (August 25, 1999) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Room for Ripley (Capacity): The guppy in the pet store ripples through the water as he swims, so Carlos names him Ripley....

Age Range: 6 - 10 years Grade Level: Kindergarten - 2 Lexile Measure: 510L Paperback: 40 pages Publisher: HarperCollins (January 5, 2000) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches After 7 days Pepper opens his eyes. After 2 months Pepper can leave his mother and come home with Lisa and...

Age Range: 4 - 8 years Grade Level: Preschool and up Lexile Measure: 290L Paperback: 40 pages Publisher: HarperCollins (August 25, 1999) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches At Rabbit's pajama party everyone is eating pizza, telling scary stories, and curling up in their sleeping...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 380L Paperback: 40 pages Publisher: HarperCollins (December 9, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Jump, Kangaroo, Jump! (Fractions): It's Field Day at camp. The 12 campers a kookaburra, an emu, two platypuses, three...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 410L Paperback: 40 pages Publisher: HarperCollins; 1 edition (December 9, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches One Saturday at the beach, Laura, Juan, and Sarah decide to have a sand castle contest. As the tide rises,...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Lexile Measure: 150L Paperback: 40 pages Publisher: HarperCollins (December 9, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Welcome to neighborhood dog show! First Maxie speaks. Second Baxter begs. Third Daisy rolls over, but will...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Lexile Measure: 110L Paperback: 40 pages Publisher: HarperCollins (August 22, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Zoe zips and zooms around the gym. She's on and off the mats, over and under the bar! She's the greatest--in...

Age Range: 6 - 10 years Grade Level: 2 and up Lexile Measure: 240L Paperback: 40 pages Publisher: HarperCollins (August 8, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches The Penny Pot (Counting Coins): Art teacher Fran is painting kids' faces at the school fair for 50 cents each. But...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 270L Paperback: 40 pages Publisher: HarperCollins; MathStart 2 edition (August 8, 1998) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Ride along with trucker Jill and her dog as they add up the animals zooming by. But these are no...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 380L Paperback: 40 pages Publisher: HarperCollins; MathStart 3 edition (December 18, 1997) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Lemonade for Sale (Bar Graphs): When members of the Elm Street Kids' Club decide to sell lemonade...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 370L Paperback: 40 pages Publisher: HarperCollins (December 17, 1997) Language: English Product Dimensions: 10 x 0.1 x 8 inches Blue Ribbon Blueberry Pie. If the bear cubs gather enough nuts, seeds and blueberries, Mama Bear has agreed to make...

Age Range: 4 - 8 years Grade Level: Preschool and up Lexile Measure: 140L Paperback: 40 pages Publisher: HarperCollins (December 18, 1997) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Everyday activities such as sharing a meal, sorting socks, and getting ready for school can be part of...

Age Range: 6 - 10 years Grade Level: 2 and up Lexile Measure: 530L Paperback: 40 pages Publisher: HarperCollins; 1 edition (July 19, 1996) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Too Many Kangaroo Things to Do! (Multiplying): Poor Kangaroo! It's his birthday but everybody's too busy...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Lexile Measure: 330L Paperback: 40 pages Publisher: HarperCollins (August 16, 1997) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Elephants, rabbits, and birds shop in this funny grocery store. Can you guess what the little rabbit wants more...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 660L Paperback: 40 pages Publisher: HarperCollins; 1 edition (January 3, 1997) Language: English Product Dimensions: 10 x 0.1 x 8 inches Divide and Ride (Dividing): In order to ride the Dare-Devil roller coaster at the Carnival, there must be...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 240L Paperback: 40 pages Publisher: HarperCollins; MathStart Subtracting edition (August 16, 1997) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches When the elevator goes down, the subtraction starts and so does the magic. Ben sees...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Paperback: 40 pages Publisher: HarperCollins; 1 edition (January 3, 1997) Language: English Product Dimensions: 10 x 0.1 x 8 inches You can start with one little hamster and keep counting past six slinky fish, eight favorite playmates, and more -- all...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 440 Paperback: 32 pages Publisher: HarperCollins (August 16, 1997) Language: English Product Dimensions: 10 x 0.1 x 8 inches Betcha! (Estimating): At stake: two free tickets to the All-Star Game. And all you have to do is guess the correct number...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 30L Paperback: 40 pages Publisher: HarperCollins (January 3, 1997) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches This busy family needs a vacation, but they don't know where to go. Mom and Dad want peace and quiet. Grandma wants...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 420 Paperback: 40 pages Publisher: HarperCollins (July 19, 1996) Language: English Product Dimensions: 10 x 0.1 x 8 inches Sleepyheads will wish they had Sammie the dog to hurry them along in their morning routines. Read along as Sammie builds...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Lexile Measure: AD440L Paperback: 40 pages Publisher: HarperCollins; 1 edition (July 19, 1996) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Does a polka-dotted sock match a striped sock? Young children will learn about matching, an important...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 580L Paperback: 40 pages Publisher: HarperCollins (March 27, 1996) Language: English Product Dimensions: 10 x 0.1 x 8 inches Ready, Set, Hop! (Building Equations): Who's the better hopper? Matty, the tall frog? Or Moe, who's just plain big? Only...

Age Range: 6 - 10 years Grade Level: 1 - 2 Lexile Measure: 430 Paperback: 40 pages Publisher: HarperCollins; 1 edition (March 27, 1996) Language: English Product Dimensions: 10 x 0.1 x 8 inches How do you share a pizza? You split it in half! Two siblings split a yummy lunch and discover that using fractions...

Age Range: 4 - 8 years Grade Level: Preschool and up Lexile Measure: 200L Series: MathStart 1 Paperback: 40 pages Publisher: HarperCollins; 1972 edition (March 27, 1996) Language: English Which bug is the biggest? Which bug is the longest? It's time to find out as all the bugs in Ladybug's garden line...

Age Range: 4 - 8 years Grade Level: Preschool and up Paperback: 40 pages Publisher: HarperCollins (December 18, 2001) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches The bugs in Coach Caterpillar s gym class are learning a new dance. But Centipede can t do it! If he can t learn the directions...

Age Range: 6 - 10 years Grade Level: 2 - 3 Lexile Measure: 410L Paperback: 40 pages Publisher: HarperCollins (August 21, 2001) Language: English Product Dimensions: 9.8 x 8 inches Dinosaur Deals (Equivalent Values): For dino-lovers Mike and his little brother Andy, there's nothing as exciting as the...

Age Range: 6 - 10 years Grade Level: 1 - 2 Paperback: 40 pages Publisher: HarperCollins; 1 edition (December 24, 2002) Language: English Product Dimensions: 10 x 8 inches How many different ice-cream sundaes can you make? With 6 ingredients to choose from, there are so many combinations. Read all about...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Paperback: 40 pages Publisher: HarperCollins (December 24, 2002) Language: English Product Dimensions: 8 x 10 inches It's hard work, taking care of 5 little ducks. But when each little duck comes home with a friend -- oh, no! Now it's double the ducks...

Age Range: 6 - 10 years Grade Level: 2 - 3 Paperback: 40 pages Publisher: HarperCollins; 1 edition (August 20, 2002) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Sluggers' Car Wash (Dollars and Cents): The 21st Street Sluggers have a problem: Their t-shirts are all worn and dirty. And that...

Age Range: 6 - 10 years Grade Level: 1 - 2 Paperback: 40 pages Publisher: HarperCollins; 1 edition (August 20, 2002) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches In their family s new house, Jenny and Jeff are driving their little sister, Jill, crazy. Who has the bigger window? Who has...

Age Range: 4 - 8 years Grade Level: Preschool and up Series: MathStart 1 Paperback: 40 pages Publisher: HarperCollins (August 20, 2002) Language: English Product Dimensions: 10 x 0.1 x 8 inches It s the Lumpkin family reunion, and Uncle Howie is ready with his camera. All the cousins have to line up...

Age Range: 6 - 10 years Grade Level: 2 and up Paperback: 40 pages Publisher: HarperCollins; 1 edition (December 18, 2001) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches Safari Park (Finding Unknowns): Grandpa's taking all the grandkids to the neatest amusement park ever: Safari Park. The...

Age Range: 6 - 10 years Grade Level: Preschool - 2 Lexile Measure: 540 Paperback: 40 pages Publisher: HarperCollins (December 18, 2001) Language: English Product Dimensions: 9.8 x 0.1 x 8 inches It's a long way around Perimeter Path! Mike's brother and sister say he's too young to compete in the 15-kilometer...

Age Range: 6 - 10 years Grade Level: 2 - 3 Paperback: 40 pages Publisher: HarperCollins (February 28, 2006) Language: English Product Dimensions: 8 x 0.2 x 10 inches Rodeo Time (Reading a Schedule): Katie and Cameron are all excited to help their uncle, Cactus Joe, with chores at the rodeo. Their first...

Age Range: 6 - 10 years Grade Level: 1 - 2 Paperback: 40 pages Publisher: HarperCollins (February 28, 2006) Language: English Product Dimensions: 8 x 0.2 x 10 inches Shopping, counting, and a birthday present all add up to a surprise ending on Mall Mania Day! A lighthearted look at addition strategi...

Age Range: 4 - 8 years Grade Level: Preschool - 3 Paperback: 40 pages Publisher: HarperCollins (February 28, 2006) Language: English Product Dimensions: 8 x 0.2 x 10 inches Jack stacks up blocks high. Two make a robot, five make a boat, and fifteen make...whatever you can imagine! Math becomes child's...

Age Range: 6 - 10 years Grade Level: 2 - 3 Paperback: 40 pages Publisher: HarperCollins (August 23, 2005) Language: English Product Dimensions: 10 x 0.5 x 8 inches Hamster Champs (Angles): The car drives away and suddenly its just Hector the cat and three clever hamsters Pipsqueak, Chuckles and Moe....