Test Pattern Generation Using Boolean Proof Engines

Watch out for some wild weather! Make reading your superpower with DK's beautiful, leveled nonfiction. Use your reading superpowers to learn all about volcanoes from where they start to what happens when they erupt, famous eruptions, how we can learn about them and even make a model of one - a high-quality, fun, non-fiction reader - carefully levelled to help children progress. Eruption! The Story of Volcanoes is a beautifully designed reader all about these dramatic natural features of our world. The engaging text has been carefully levelled using Lexile so that children are set up to succeed. A motivating introduction to using essential non-fiction reading skills. Children will love to find out how volcanoes are formed; the damage - and the good - they do; where the best places are to see an eruption; and how to build their own model volcano.

Help your child power up their reading skills and learn all about the world's fastest animals with this fun-filled nonfiction reader carefully leveled to help children progress.DK Super Readers Pre-Level: Fast Animals will introduce kids to a parade of speedy animals--from the sprinting cheetah to a shrimp making a speedy catch of its dinner--and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading. DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently. The DK Super Readers series can help your child practice reading by: - Covering engaging, motivating, curriculum-aligned topics.- Building knowledge while progressing key Grades Pre-K and K reading sk

Learn all about Thomas the Tank Engine, Kana the first electric train on Sodor, Sir Topham Hatt, and many other steam engines, diesels, vehicles, and characters from Sodor.This colorful guide is packed with fun facts about a host of popular characters from the much-loved brand, including the new-look characters from the latest Thomas & Friends: All Engines Go™ TV series. It also features scenes and story lines from the exciting new animations. With stunning full-color images and essential information about favorite characters, Meet the Engines: An Encyclopedia of the Thomas & Friends Characters is a must-have for all young Thomas fans.

A fun way to learn about trees from all over the world!Discover the wonderful world of trees This amazing deck of cards welcomes you to the plant kingdom, where you can meet more than 150 species of trees, ranging from the mighty Californian redwood to the ancient banyan tree. Stunning pictures and fast facts enable you to grasp a wealth of knowledge in a fun way. Each card contains snappy and accessible information, displaying each tree in beautiful detail. The front of the card shows the tree with a clue of what it is. The back reveals the answer, plus a dataset about the tree: its size, location, and distinguishing features alongside close-up pictures of the bark, leaves, and fruit. You can use the cards to test your own knowledge; or how about using them to play a guessing game, quiz, or a competitive comparison game with a friend? Our World in Pictures: Trees of the World Flash Cards is packed with information on the world’s most amazing trees―from those that feed us to others th

Discover the wonders of our rocky planet!This amazing deck of cards welcomes you to Earth's extraordinary minerals and gems, from sparkling emeralds to igneous rocks formed deep inside the Earth’s molten core. Stunning pictures and fast facts enable you to grasp a wealth of knowledge in a fun way. Each card contains snappy and accessible information, displaying each rock or mineral in dazzling detail. The front of the card shows the rock with a clue of what it is. The back reveals the answer, plus a dataset of essential information, ensuring you can recognize sedimentary from sandstone, metamorphic from marble, and pyrite from pearl. You’ll discover the unique qualities of each material, together with how it is used in art, industry, architecture, and science. You can use the cards to test your own knowledge, or how about using them to play a guessing game, quiz, or competitive comparison game with a friend? Our World in Pictures: Rocks & Minerals Flash Cards are packed with informat

Meet the sea creatures living on a coral reef! Make reading your superpower with DK's beautiful, leveled nonfiction. Use your reading superpowers to learn all about a beautiful coral reef and the sea animals living there - a high-quality, fun, nonfiction reader - carefully leveled to help children progress. Fishy Tales is a beautifully designed reader all about the fish and other sea animals living on a coral reef. The engaging text has been carefully leveled using Lexiles so that children are set up to succeed. A motivating introduction to using essential nonfiction reading skills. Children will love to find out about the beautiful coral reef and all the sea animals that can be spotted on it.

How did they make that using LEGO® bricks?Find out! Meet the professional builders behind some amazing LEGO® models and learn all about how these creative experts make masterpieces using LEGO bricks.

Discover fascinating facts about communication in all its forms, from around the world and over timeEngaging factual writing introduces young readers to the most interesting aspects of languages, how they evolve and change over time.Humans’ use of language is one of our distinguishing features. Language allows us to communicate what we think, what we want, what we feel, and what we have learned. Some 100,000 years ago, humans began speaking. Since then, we have developed nearly 7000 languages. Languages are living things; they evolve and change over time. They even travel! People carry their language with them and spread it. Large language families even have their own family trees, such as Spanish, French, English. Different languages can be mixed and combined to create new languages with similar words, pronunciation, and grammar rules. Languages can even become extinct if they are not shared and learned by each new generation. Spoken languages are not the only way we communicate. Sign

Help your child power up their reading skills and learn all about mummies and what they are with this engaging nonfiction reader carefully leveled to help children progress. DK Super Readers Level 4: Secrets of the Mummies will introduce kids to mummies from all around the world--including facts about Egyptian, Inca, and Sicilian mummies--and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading. DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently. The DK Super Readers series can help your child practice reading by: Covering engaging, motivating, curriculum-aligned topics.Building knowledge while progressing key Grades 4 and 5 reading skills.Develop

Visit one of the most incredible natural environments, meeting the Amazon’s plants and wildlife, and its peopleA unique, beautifully illustrated guide to the beauty and diversity of the Amazon – the rainforest and the river, its flora and fauna, and the people who live in the region. Applying the award-winning Eyewitness formula to the subject of the largest and most biodiverse tract of tropical rainforest in the world, and the vast river that winds its way through it, this book profiles everything from the birds, animals, and insects that live there to the nine South American countries it extends across. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature – fascinating first-hand accounts from experts in the field.

These Wonders of the World highlight astounding ancient architecture, the history of civilization, and the beauty of our planet.Highlighting more than just the Seven Wonders of the World – the Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria – DK Eyewitness Books: Wonders of the World showcases more than 50 architectural feats and natural treasures. From human-made landmarks such as the Statue of Liberty to record-breaking natural marvels like the River Nile, this book takes kids on an incredible journey around the world's most spectacular sights. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness" feature – fascinating fi

Visit one of the most incredible natural environments, meeting the Amazon’s plants and wildlife, and its peopleA unique, beautifully illustrated guide to the beauty and diversity of the Amazon – the rainforest and the river, its flora and fauna, and the people who live in the region. Applying the award-winning Eyewitness formula to the subject of the largest and most biodiverse tract of tropical rainforest in the world, and the vast river that winds its way through it, this book profiles everything from the birds, animals, and insects that live there to the nine South American countries it extends across. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature – fascinating first-hand accounts from experts in the field.

These Wonders of the World highlight astounding ancient architecture, the history of civilization, and the beauty of our planet.Highlighting more than just the Seven Wonders of the World – the Pyramids of Giza, the Hanging Gardens of Babylon, the Temple of Artemis, the Statue of Zeus, the Mausoleum at Halicarnassus, the Colossus of Rhodes, and the Lighthouse of Alexandria – DK Eyewitness Books: Wonders of the World showcases more than 50 architectural feats and natural treasures. From human-made landmarks such as the Statue of Liberty to record-breaking natural marvels like the River Nile, this book takes kids on an incredible journey around the world's most spectacular sights. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness" feature – fascinating fi

North and South enter a conflict of more than 50 battles – discover how tensions exploded into a war that lasted four years.This book takes you through the history of one of the most important times inUS history. Find out how Abraham Lincoln became president in 1860 and why hewas assassinated. Discover the horror of enslaved life, and about the Underground Railroad that helped its victims escape. Eyewitness American Civil War shows both sides of the conflict in an equal light, allowing readers to consider all views. This museum-in-a-book uses striking full-color photographs of paintings, artifacts, and illustrations of battles, famous leaders, and much more along with amazing facts, infographics, statistics, and timelines to reveal this period of US history as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fre

Dive into a watery world where many wonderful fish of all shapes and sizes swim, in rivers, lakes, and oceans.DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, why fish need water to breathe, and much more. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature

North and South enter a conflict of more than 50 battles – discover how tensions exploded into a war that lasted four years.This book takes you through the history of one of the most important times inUS history. Find out how Abraham Lincoln became president in 1860 and why hewas assassinated. Discover the horror of enslaved life, and about the Underground Railroad that helped its victims escape. Eyewitness American Civil War shows both sides of the conflict in an equal light, allowing readers to consider all views. This museum-in-a-book uses striking full-color photographs of paintings, artifacts, and illustrations of battles, famous leaders, and much more along with amazing facts, infographics, statistics, and timelines to reveal this period of US history as never before. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fre

Dive into a watery world where many wonderful fish of all shapes and sizes swim, in rivers, lakes, and oceans.DK Eyewitness Books: Fish is an exciting and informative guide to the fascinating world of fish. Striking color photographs of tropical fish, eels, seahorses, and more offer a unique "eyewitness" view of the natural history of fish, how they behave, and how they survive. See the lethal jaws of a piranha, a porcupine fish "puffing up," how a dogfish swims, growth rings on a fish scale, what a fish looked like 400 million years ago, and a fish with legs. Learn how a school stays together, why some fish swim upside down, how a stingray stings, why fish need water to breathe, and much more. Part of DK’s best-selling Eyewitness series, which is now getting an exciting makeover, this popular title has been reinvigorated for the next generation of information-seekers and stay-at-home explorers, with a fresh new look, new photographs, updated information, and a new “eyewitness feature

Teach your young children all there is to know about the minerals and rocks found beneath their feet with this delightful set of 54 flash cards.Dig up the Earth and uncover the wonderful world of rocks and minerals with this collection of colorful, educational picture cards. From rough rocks to glistening gems and everything in between, children will love mastering the names of these elements and learning all of the must-know facts and figures―there will be no stone left unturned. These two-sided cards will provide simple questions that will challenge children’s understanding, fascinating facts that will test their memory, and a pronunciation guide for each rock and mineral to help children develop their vocabulary and reading abilities. The flash cards are also large and sturdy, making them ideal for any learning environment and perfect for messy little hands. With a vibrant, detailed illustration on every card, the Rocks and Minerals Flash Cards set makes for a beautiful gift and mo

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 6-7, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 6-7, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 6-7, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency. Aimed at children aged 6-7, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 6-7, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey. Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn about number patterns, sequences and ordering, and using pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey. Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

Each book in this unique Math Mastery series developed by experts covers all the essential skills for children in the first stages of their math journey.Every topic is supported by clear examples and helpful hints to encourage proficiency.Aimed at children aged 4–6, this full-color book will help your child learn counting skills using numbers up to 100, with pictures and objects. It's attractively illustrated and led by appealing characters who offer useful tips to children (and parents) that make learning accessible and interesting. Every child can learn math with Math Mastery.

A series of picture books that teach children about dinosaurs with a narrative story and a working spread at the end of the book with more facts and information about what they just learned.These picture books will teach children about dinosaurs through a story! Marie Bollman’s beautiful illustrations are friendly and fun (but still technically correct!) and each story will end with a working spread on dinosaurs doing what DK does best―using photography and illustrations to teach children incredible facts that deepen their knowledge of a well-loved subject.In this book, find out all about Deinonychus’s big day―from going out with her hunting pack in the morning, to weathering a big rainstorm, and escaping from a muddy ravine.

Travel to space with Captain Marvel as she flies into action alongside Ms. Marvel and other awesome Super Heroes.Meet Earth’s Defender, Carol Danvers, aka Captain Marvel, one of the universe’s most powerful Super Heroes, and Kamala Khan, aka Ms. Marvel, who is able to change shape and size and even take the appearance of others! In this book, young readers can learn all about Carol and Kamala―and those who fight alongside cosmic Captain Marvel and help protect Earth from evil. Join forces with these marvelous heroes as they fight back against evil alien invaders and super-villains.Take a trip into space with this thrilling Level 2 DK Reader. Exciting Marvel comics images, clear vocabulary and a fun quiz will test the young Super Hero at heart and help them in building their reading ability as they learn about Captain Marvel, Ms. Marvel, and other favorite Marvel comics characters.© 2022 MARVEL

Travel to space with Captain Marvel as she flies into action alongside Ms. Marvel and other awesome Super Heroes.Meet Earth’s Defender, Carol Danvers, aka Captain Marvel, one of the universe’s most powerful Super Heroes, and Kamala Khan, aka Ms. Marvel, who is able to change shape and size and even take the appearance of others! In this book, young readers can learn all about Carol and Kamala – and those who fight alongside cosmic Captain Marvel and help protect Earth from evil. Join forces with these marvelous heroes as they fight back against evil alien invaders and super villains.Take a trip into space with this thrilling Level 2 DK Reader. Exciting Marvel comics images, clear vocabulary and a fun quiz will test the young Super Hero at heart and help them in building their reading ability as they learn about Captain Marvel, Ms. Marvel, and other favorite Marvel comics characters.© 2022 MARVEL

Meet Leonard, the clueless and softly spoken shrew, in this charming story about finding your voice and speaking up.Little Leonard can be a bit shy and finds it hard to make his voice heard. This sometimes means he misses out on some of the exciting experiences life has to offer: tasty seed snacks, playing games with the other children at free time, or being the first in the class to answer a question he knows he has the answer to. But when Leonard sees a friend being picked on by a bully in the playground can he find the courage to speak out and save the day?Speak Out, Leonard! aims to encourage self-awareness, confidence, compassion, and empathy in little ones and to help them understand the importance of using your voice to speak out against injustice.

Our world is wonderful, and it’s up to us to take care of it. You may feel small, but your actions can make a big difference.This title encourages children to take care of the planet, but it doesn’t just focus on the problems―it teaches them proper practical solutions to the issues facing our world today. Veterinarian, author, and TV host Jess French guides kids through taking care of our planet, from living a sustainable lifestyle to using their voice in politics. Unlike many books about the environment, Jess not only covers how to take care of plants and animals, but also the positive contribution that humans can make on each other’s lives, too. Strong themes of self-care and mindfulness run through the book, and kids are introduced to activism. Discover how to reduce your carbon footprint, understand the importance of preserving our forests, oceans, and endangered animals, and learn the best ways to stand up for what you believe in. Bright, cool illustrations by Aleesha Nandhra comb

Imagine if you could travel back in time and walk the streets of the past. Where would you go first? Incredible History turns back time to reveal realistic reconstructions of the most incredible locations and exciting moments in history. You’ll feel the roar of the crowd in the Roman Colosseum, walk the ramparts of the Great Wall of China, and ride the first railways. Each story begins with an archaeological site or artifact. You’ll learn when and how it was discovered, and what it teaches us about how the people who lived at the site might have spent their days. Then, you’ll see the location recreated in jaw-dropping 3D detail. Using archaeological evidence, the people and places of the past will be brought back to life before your very eyes. With each page packed with fantastic facts and extraordinary pictures, Incredible History brings together the best parts of history and archaeology to recreate the entire history of the world.

The highly effective card game that helps kids master phonics and improves reading – it’s so fun that children won’t even know they’re learning!Finally, a way to make phonics fun!Foolproof Phonics Blah Blah Blah Card Game is a hilariously fun card game, perfect for kids who are just starting to learn to read. Master decoding words using phonics with these three decks of increasing difficulty. Race to get rid of your cards by matching sounds and letters, and play wild cards to trip up your opponents!The bestselling and highly effective phonics game is so fun that children won’t even know they’re learning! Three decks featuring over 200 cards, covering 40 sound-letter correspondences. Easy to play with two players or more!Developed with teachers and phonics experts, and aligned to Common Core standards.Tested with teachers and kids to make sure they love it.“This game is a fantastically fun way for young people (and their parents) to develop and practice their phonic knowledge. It covers

125 comprehensive, easy-to-use cards for exam preparationA fantastic aid for exam preparation, these flash cards make biology crystal clear and will have you exam-ready in no time.Make biology super simple! These handy revision cards condense everything you need to know about biology into bitesize key facts and crystal clear diagrams. Studying for exams has never been so easy. Biology is explained in simple, user-friendly language, with colorful illustrations to help you grasp difficult concepts at a glance. Whether you’re catching up on lessons, doing homework, or revising for exams, these super simple cards will make you a biology expert in no time.