Mathematics of Discrete Structures for Computer Science

BANG! What is G-force? What is a sonic boom? Find out more about the science of fast cars and high speed.High Speed, a Level 4 Reader, is A2 in the CEFR framework and supports YLE Flyers exams. The longer text is made up of sentences with up to three clauses, more complex past and future tense structures, modal verbs and a wider variety of conjunctions.

What is energy? How do we get clean energy? Find out more about the fossil fuels, climate change and renewable energy.Making Clean Energy, a Level 4 Reader, is A2 in the CEFR framework and supports YLE Flyers exams. The longer text is made up of sentences with up to three clauses, more complex past and future tense structures, modal verbs and a wider variety of conjunctions.

Why is the ocean important? Why do people study it? Find out about protecting the ocean and its plants and animals in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners of English. Covering a variety of topics, Do You Know? adopts an enquiry-based approach, and includes motivating video content, project work and critical thinking activities to develop students' linguistic and twenty-first century skills.Recommended for children aged 7+, there are four levels progressing from CEFR level Pre-A1 to level A2. Each reader is accompanied by online video content, audio, video and comprehension activities, and suggestions for project work. Protecting the Ocean, a Level 4 Reader, is A2 in the CEFR framework and supports YLE Flyers exams.The longer text is made up of sentences with up to three clauses, more complex past and future tense structures, modal verbs and a wider variety of conjunctions.

An Angry Birds story. The Pigs think they have found an easy way to steal some eggs, but sweet-looking Stella has a surprise for them... Read it yourself with Ladybird is one of Ladybird's best-sellin

Peppa and her family are visiting the funfair. Find out who gets scared on the rides and who wins lots of prizes. Read it yourself with Ladybird is one of Ladybird's best-selling reading series. For o

Written to include many words that are vital for learning to read, as well as a limited number of story words that are introduced and practised throughout, this book features simple sentences and freq

An Angry Birds story. The Pigs think they have found an easy way to steal some eggs, but sweet-looking Stella has a surprise for them... Read it yourself with Ladybird is one of Ladybird's best-sellin

Peppa and her friends are going on a school bus trip. What adventures will they have when they visit the mountains? For over thirty-five years, the best-selling Read it yourself with Ladybird has help

Madame Gazelle is having a jumble sale to raise money for a new school roof. What does Daddy Pig buy? For over thirty-five years, the best-selling Read it yourself with Ladybird has helped children le

How do you move water? Can we grow food where it does not rain? Find out more about dams, aqueducts and working with water.Working with Water, a Level 3 Reader, is A1+ in the CEFR framework and supports YLE Movers exams. The longer text is made up of sentences with up to three clauses, some expression of future meaning, comparisons, contractions and relative clauses.

How do animals stay safe? Which animals want to be bigger? Find out how prey animals can be clever in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non

What are reptiles? What do they eat? Find out about different reptiles on land and in water in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction

What is a predator? How do sharks find food? Find out about predators that live under the water in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fic

How do animals move? Who flies fast? Who walks slowly? Find out about different animal speeds in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-ficti

Why are there a lot of insects at night? When do sharks sleep? Find out about what some animals do at night in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a rang

An Angry Birds story. Red is very excited about the Great Fling-off! What happens when he and Chuck discover some pigs when during their training? Read it yourself with Ladybird is one of Ladybird's b

An Angry Birds story. Red is very excited about the Great Fling-off! What happens when he and Chuck discover some pigs when during their training? Read it yourself with Ladybird is one of Ladybird's b

How do we make bridges? Do animals have bridges? Find out more about the science of building bridges, big and small.

產品介紹How do birds fly? How do jet engines move a plane? Find out more about helicopters, gliders and the science of flying.In the Air, a Level 2 Reader, is A1 in the CEFR framework and supports YLE Movers exams. Short sentences contain a maximum of two clauses, introducing the past tense and some simple adverbs.系列介紹跟著 BBC Earth一起探索動物與大自然的神秘世界▌讀本融入探究式教學概念（ inquiry-based approach ），每一跨頁均透過「主題問句」先引導孩子主動思考，再輔以實例、多元活動增進學習深度與廣度。▌全系列共四級（L1-4），每級九本。每本清楚標示Lexile級數及Word count。▌每本除提供non-fiction文本外，亦有圖解單字、互動式延伸活動（Find Out, Think, Watch, Project, Look）及讀後小考。▌每級數句構與時態運用及詞彙表達皆參考Cambridge YLE題型，讓孩子從閱讀中學習主題知識，同步培養必備語言、溝通力及探究力。

What is a jungle? Find out about jungle plants and animals in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners o

How many ears do animals have? What can animals do with a tail? Find out about animals and their bodies in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for young learners of English. Covering a variety of topics, Do You Know? adopts an enquiry-based approach, and includes motivating video content, project work and critical thinking activities to develop students' linguistic and twenty-first century skills.Recommended for children aged 7+, there are four levels progressing from CEFR level Pre-A1 to level A2. Each reader is accompanied by online video content, audio, video and comprehension activities, and suggestions for project work. Animals and Their Bodies, a Level 1 Reader, is Pre-A1 in the CEFR framework and supports YLE Starters exams.Short sentences contain a maximum of two clauses, using the present tense and some simple adjectives.

Do all birds fly? What do insects eat? Find out about birds and insects in this BBC Earth reader. The Ladybird Do You Know? graded readers series comprises a range of non-fiction STEM titles for you

It is washing day for Bear. Masha is dirty-again and again! Bear washes Masha's clothes-again and again. Bear is tired!Ladybird Readers is a graded reading series of traditional tales, popular charact

Masha wants sweets for breakfast. Bear is not happy. Sweet are not a breakfast food! Masha makes lots of sweets . . . Ladybird Readers is a graded reading series of traditional tales, popular charac

"I want to go on a trip," said Moomin. Moomin, Snorkmaiden, Moominmamma, Moominpappa and Little My look for treasure. Ladybird Readers is a graded reading series of traditional tales, popular charac

How does color help animals? Can you see the animals in their homes? Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for

One day, Moomin sees something in the water. It is small and white. It is a beautiful star! Moomin can make a wish. What does he ask for? Ladybird Readers is a graded reading series of traditional tal

Learn to say "Good morning" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a

Learn where things are with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a fore

Learn to say "Thank you" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a fo

Learn about colors with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a foreign

Forests have been on Earth for millions of years. Lots of animals live in forests and sometimes their lives can be very difficult. Ladybird Readers is a graded reading series for English Language

Ask and answer "What is your name?" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of Engl

Ask and answer "How are you?" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as

Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a foreign or second language. Beautifull

Ask and answer "How many?" with Spot. Ladybird Readers is a graded reading series of traditional tales, popular characters, modern stories, and non-fiction, written for young learners of English as a

Peter Rabbit goes in the farmer's garden for some radishes. Then, the farmer sees him! Can the farmer catch Peter? Ladybird Readers is a graded reading series of traditional tales, popular characters,

Peter Rabbit goes in the farmer's garden for some radishes. Then, the farmer sees him! Can the farmer catch Peter? Ladybird Readers is a graded reading series of traditional tales, popular characters,

Pretty Thumbelina is the size of a thumb! Find out what happens when she meets lots of strange characters. For over thirty-five years, the best-selling Read it yourself with Ladybird has helped childr

Jon and his friends are big fans of famous footballer Ben Wills. Can they learn to play like him and win? For over thirty-five years, the best-selling Read it yourself with Ladybird has helped childre