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One-osaurus, Two-osaurus

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Part counting game, part dinosaur celebration, this energetic romp is a numbers concept book for the ages.

One-osaurus, two-osaurus, three-osaurus, four!

Look there, in a child’s bedroom, where some prehistoric pals are gathered in a counting game. Nine dinosaurs are playing a sing-song rendition of hide-and-seek—but something isn’t adding up. Where is number ten? Stomp, stomp, stomp! CHOMP, CHOMP, CHOMP! Ready or not, here he comes, and he sounds . . . big! With big, bold numerals, an array of dinosaurs in comical poses, and a humorous twist at the end, this tribute to a child’s imagination makes learning numbers a gigantic treat.

32 pages, Hardcover

Published March 23, 2021

87 people want to read

About the author

Kim Norman

37 books62 followers
Kim Norman is the author of more than a dozen children’s books published by Sterling, Scholastic and two Penguin imprints. Titles include Ten on the Sled, (Sterling) which spent weeks on Barnes and Noble’s Top Ten bestseller list and has been released in Korean and German editions as well as appearing in Scholastic Book Fairs in schools around North America. I Know a Wee Piggy, was reviewed in the New York Times, and is listed on the Texas “2x2 Reading List,” as well being offered by Dolly Parton’s Imagination Library.

Kim has a long history of theater & musical performing, which she enjoys including in her school visits and presentations. Songs and videos on her website, kimnormanbooks.com

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5 stars
155 (32%)
4 stars
203 (43%)
3 stars
102 (21%)
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9 (1%)
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Displaying 1 - 30 of 99 reviews
Profile Image for Jon Nakapalau.
6,345 reviews965 followers
December 9, 2024
Learn to count with dinosaurs - love the art! I would have loved books like this when I was learning to count. I was really 'dino focused' when I was a small boy; I thought that I really wanted to be a paleontologist when I grew up (but math got in the way). This is what I like to call a 'repeat read' because it will be a favorite for some time.
Profile Image for Melki.
7,167 reviews2,584 followers
July 28, 2022
Join in a dino-riffic game of hide-and-seek that features a cute, and sassy ending.

Loads of fun for kids and their parents.

With bold illustrations by Pierre Collet-Derby.

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Profile Image for Kailey (Luminous Libro).
3,531 reviews543 followers
March 23, 2021
Some little dinosaurs decide to play a counting game of hide and seek. The dinos all sneak quietly through the pages to find a place to hide, but dino number 10 is stomping onto the scene with a roar!

The adorableness is strong with this one. I loved the cute storyline, and the sweet little dinosaur characters. The story is fun with plenty of action and engaging rhythms in the narration.

The rhyming text is absolute perfection! It gives such a nice flowing cadence to the story. And I am very picky about rhyming children's books, so you know it's really really good if I am pleased with it.

The illustrations are excellent! The bright colors are attractive, and you can really feel the action as the dinosaurs run to hide. Each dino has a unique design and some little extra thing that makes them special. They might have glasses, or a bow tie, or a scarf around their neck. One dino even has a scooter!

This is such a cute book and very fun to read out loud. I can't wait to share this with my little nephew who is obsessed with dinosaurs!

Disclaimer: I received a copy of this book from the publisher in exchange for a free and honest review. All the opinions stated here are my own true thoughts, and are not influenced by anyone.
Profile Image for Geena Hollis.
23 reviews
June 5, 2021
The flow of this book is beautiful. I don't know if it will happen to you, but for me, I naturally read it with a rhythm and beat in my head.
Profile Image for Linda .
4,158 reviews51 followers
March 15, 2021
This is the funniest rhyming counting story that every young child will want to memorize and read right along with those reading aloud. It may take repeats, and actually, I bet the adult reading will want to memorize it, too. It's a hide 'n seek game, too. Pierre Collet-Derby uses clever comic-style illustrations to show off the dino for each number. They show off and they hide. But where is number ten? I loved this book, now need to read it aloud TO someone!

Thanks to Candlewick Press for this copy!
Profile Image for Binxie.
859 reviews3 followers
March 29, 2021
Very cute and colorful this counting book has dinosaurs playing hide and seek. This will work well in a group setting for 2+.
Profile Image for Amy.
960 reviews
April 8, 2021
A silly counting book for the dino-lover in your life! Kim Norman's rhymes are always on point. A great read-aloud for toddler storytimes or bedtimes.
Profile Image for Abby Johnson.
3,373 reviews352 followers
Read
April 20, 2021
Cute and funny with bouncy, rhythmic rhymes and bright colors. This is a must-read for your young dino fans and destined to be a hit at storytime.
Profile Image for Katie.
537 reviews5 followers
February 23, 2022
I love this book! I think this is the most fun counting book I've seen? Very good rhymes, very dynamic art.
Profile Image for Darcy.
140 reviews
March 28, 2022
fun bouncy rhymes, dinosaurs, counting, games, what's not to love? it will likely be a hit with young kids and storytime.
Profile Image for Robin.
2,278 reviews2 followers
June 28, 2021
An instant story time essential. Impeccably crafted and lively dinosaur counting books make librarian hearts overflow with delight. Highly, highly recommended for ages 1-4.
Profile Image for Sarah Verno.
180 reviews19 followers
June 25, 2021
4.5 The playful illustrations are delightful.
Profile Image for Tin Cheung.
278 reviews4 followers
June 21, 2021
cute and fun counting book with dinosaurs
Profile Image for Tasha.
4,164 reviews135 followers
April 17, 2021
Some dinosaurs start their morning with a counting game. “One-osaurus, two-osaurus, three-osaurus, four.” After counting to seven, a huge ROAR interrupts the counting. The dinosaurs gather together in a herd and then make a run for it, knowing that something big is heading their way. Soon they are all hiding behind their numbers, letting us count them one more time: one through nine. Where is ten? He’s coming now, he’s “ten-osaurus rex.” But he may not be what the readers expect when he is revealed and the book takes a great twist in the end too.

Norman’s simple writing begs to be shared aloud. This counting book really works well, the numbers on the page playing into the rhyming text and building with it. The pace is wild and romping, something that makes the counting all the more fun. Thanks to its clever structure, young readers get to merrily count the dinosaurs again and again in the book without it feeling at all repetitious. The humor is a large part of the success of the book too.

That same humor is reflected in the illustrations which are big and bold, adding to the read-aloud appeal. The various dinosaurs are bright colored and pop against the changing colors of the background. Having them hide behind their big black numbers adds to the counting fun, including a page where the numbers aren’t in order and young children can find the numbers in a new way.

Smart, funny and full of dinosaurs. You can count on this one being popular. Appropriate for ages 2-4.
Profile Image for Hannah Wilbiks.
21 reviews
April 22, 2021
From first glance, this wouldn’t usually be the kind of book I pick out but oh how wrong I would have been! The bright, quirky illustrations match perfectly with the rhyme and fun familiar one-potato rhyme from my own childhood! The whole book was hilarious and had all of us giggling at the hiding places and the brilliant ending.

So perfect for little ones learning to count or anyone looking for an entertaining quick fun read!
Profile Image for Andrew.
1,885 reviews125 followers
December 21, 2020
As far as counting books go, you can never go wrong with one full of dinosaurs! these colorful, prehistoric pals are having a great time counting until they need to hide from the ferocious TEN-OSAURUS REX! Luckily, his intimidating shadow doesn't reflect his bubbly personality! Simplistic, vibrant, and fun, this is a great counting book to add to any child's collection.
Profile Image for Halli.
212 reviews24 followers
March 31, 2021
This book is perfect for preschool storytime. I always feel like I read the same dinosaur books over and over, and was very excited to find a new one! The kids loved it-the counting, the suspense, the illustrations, the subtle humor.
Profile Image for Amy.
3,374 reviews32 followers
Read
April 16, 2021
This is the most delightful picture book, especially for babies/toddlers/preschoolers. It has counting, dinosaurs, hide-n-seek, and a great read-aloud rhythm. I can't WAIT to use it in a story time. Kim Norman is such a fun author!
Displaying 1 - 30 of 99 reviews

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