Ready, Set, Hop!

by Stuart J. Murphy

Published 27 March 1996
Explains equation building as two frogs count their hops to a rock, a log, and a pond.

Room for Ripley

by Stuart J. Murphy

Published 25 August 1999
Carlos pours cups, pints and quarts of water into his fish bowl, getting ready for his new puppy, Ripley. Readers can learn about capacity as they see just how much water it takes to make room for Ripley!

Josh is the best collector on the block. And now he has something new to collect - rocks! Soon Josh and his best friend, Amy, have so many rocks they need to organize their collection. But how? Young collectors will be fascinated by all there is to know about rocks and about classifying - sorting and organizing objects by attributes like color, shape, or size. Grab your rock hammer and join the fun with this entertaining story by Stuart J. Murphy and lively art by Cat Bowman Smith.

Shark Swimathon

by Stuart J. Murphy

Published 15 November 2000
Shark Swimathon The Ocean City Sharks have to swim 75 laps by the end of the week, and every day they figure out how many laps are left to go. Swimming and subtraction are all part of the fun!

Game Time!

by Stuart J. Murphy

Published 22 August 2000
Game Time! Keep an eye on the clock as the Huskies and the Falcons gear up for their championship soccer match. Weeks, days, hours, minutes, and seconds--it's all game time!

Treasure Map

by Stuart J. Murphy

Published 1 September 2004
Matthew has found a treasure map, and soon the Elm Street Kids' Club is off on a quest. The map guides them into a wonderful, magical world, but it's the real-life math skills of understanding distance, scale, direction, and symbols that will help Matthew, Sheri, Meg, Danny, and Jed -- with some assistance from Petey the parrot -- find a treasure hidden fifty years ago.

Lemonade for Sale

by Stuart J. Murphy

Published 1 January 1998
The Elm Street Kids' Club decides to sell lemonade to earn money to fix up their clubhouse and they use a graph to keep track of their sales.

The Grizzly Gazette

by Stuart J. Murphy

Published 24 December 2002
It's the last week of Camp Grizzly, and the campers are preparing to elect a mascot. Each day the Grizzly Gazette takes a poll to see who has the biggest percentage of the vote so far. Is it Sophie? Is it Daniel? Or could it be Corey, the new entry in the race? Corey's determined to do her best. But she's got to make up for lost time. Can she win out over Daniel and Sophie? No one will know for sure until the last vote is counted! A lively story about summer camp fun will help young readers understand both percentage and voting!

Hamster Champs

by Stuart J. Murphy

Published 23 August 2005
Stuart J. Murphy travels all over the UnitedStates talking to thousands of kids. And you'll never believe what they talk about: MATH! Stuart shows kids that they use math every day -- to share a pizza, spend their allowance, even sort socks. Stuart writes funny stories about math -- and if you read his books, you'll start to see the fun in math, too. Hamster Champs With a few blocks, a board, and a protractor to measure the angles, the hamster champs have built a ramp that lets them fly high! But will this stunt be good enough to outwit Hector the cat?

Jump, Kangaroo, Jump

by Stuart J. Murphy

Published 1 December 1998
Kangaroo and his Australian animal friends divide themselves up into different groups for the various field day events at camp.

The Penny Pot

by Stuart J. Murphy

Published 8 August 1998
The face painting booth at the school fair provides plenty of opportunities to count combinations of coins adding up to fifty.

Divide and Ride

by Stuart J. Murphy

Published 3 January 1997
Scream down the Dare-Devil Coaster and whirl around in the Twin Spin cars! Join in the carnival fun as 11 friends divide up to fit on the 2-to-a-seat roller coaster and the 4-to-a-cup teacups ride. Making new friends and practicing predivision skills have never been so exciting!

It's Kangaroo's birthday, but no one will play with him: not the emu, the platypuses, the koalas, or even the dingos. They all have too many things to do. What exactly are they doing? They're using multiplication to figure out just how many things they have to do to plan a big surprise for Kangaroo! Best Children's Science Books 1997 (Science Books and Films)

Dinosaur Deals

by Stuart J. Murphy and Heather Henson

Published 21 August 2001
Lets Make a Deal! Mike and his little brother, Andy, are headed for the Dinosaur Card Trading Fair. They're ready to wheel and deal. It's, 4 Stegosaurus for 1 Triceratops, and 2 Triceratops for 1 Allosaurus. But can they get what they really want: the tremendous, gigantic, ferocious, Tyrannosaurus rex? The math concept of equivalency -- understanding when values are equal -- is introduced in this fast-paced story as two brothers try to beat the clock and make the ultimate trade.

Safari Park

by Stuart J. Murphy

Published 1 December 2001
It's 4 tickets for the Treetop Coaster! Just 2 for the Elephant Twirl! five cousins each have 20 tickets to spend at Safari, and a little algebra will tell them how many rides they can try. But who will dare the death-defying Terrible Tarantula?

Earth Day - Hooray!

by Stuart J. Murphy

Published 20 January 2004
Earth Day is on the way, and Ryan, Luke, and Carly have a plan. If they manage to collect and recycle 5,000 aluminum cans, they can make enough money to buy some beautiful flowers for nearby Gilroy Park. CAN they do it? Counting the cans gives Ryan, Luke, and Carly -- along with readers -- a lesson in place value. And facts about recycling throughout the story will help readers understand how important it is to take care of the earth.

Sluggers' Car Wash

by Stuart J. Murphy

Published 1 August 2002
Sluggerscar Wash (LEVEL 3: Dollars and Cents) The 21st Street Sluggerst-shirts are worn-out and dirty. They need new ones, but they have no money. How can they raise some cash, and fast? By having a car wash! Learning to count money and make change are important real-life math skills t teamwork is the most valuable player in this sports story. Ages 7+

Betcha!

by Stuart J. Murphy

Published 16 August 1997
What do cars, toys, people, and jelly beans have in common? They can all be estimated. Two friends try out their estimating skills and find out that estimating can have real rewards--especially when there's a contest to enter!