Security for Wireless Sensor Networks Using Identity-based Cryptography

Wry, witty and very funny diary-style story packed with doodles and comic strips about the frustration trickster god Loki feels at having to live trapped in the body of a weedy eleven-year-old boy. After one trick too many, Loki is banished to live on Earth as a "normal" school boy. Forbidden from using his AWESOME godly powers, Loki must show moral improvement.As he records his lies THE TRUTH in his magical (judgemental) diary, it becomes clear Loki hasn't a clue how to tell good from evil, trust from tricks, or friends from enemies.

《公主出任務》女力再出擊。傳說中的美人魚公主祈求黑衣公主保護她免受海怪襲擊。但海底世界並不利於黑衣公主行動，美人魚公主必須學習勇敢為自己發聲！There’s trouble under the sea! Can the Princess in Black and her new mermaid friend put a stop to a big blue kraken’s shenanigans?The Princess in Black and her friends are enjoying a day of sun and sea on Princess Sneezewort’s royal boat when a real, live mermaid princess emerges from the waves! Eeeeeee! Princess Posy needs their help protecting her very cute sea goats from being eaten by a very greedy kraken. But the princesses and the Goat Avenger quickly realize that fighting underwater can be tough for land dwellers, and only the mermaid Princess Posy can save the day. Can the masked heroes help her learn that being a princess means more than just being nice―it means speaking up? An ode to using your voice (along with a kelp-tree swing or two), this newest installment in the New York Times best-selling series is a splish-splashing good time.

國家教育研究院審定 技審字第 110169 號Preface“高階英語聽講練習” is a comprehensive split edition coursebook for students in their third year of vocational high school to develop their listening and speaking skills. The book provides a broad collection of topics based on real-world situations and various activities promoting interaction with peers. In “高階英語聽講練習,” students can use and improve their English skills to build fluency in their everyday English conversations and professional speeches.Each unit has two main listening texts. For each listening text, students are guided through a set of steps: before you listen, while you listen, and after you listen. These steps help students learn how to listen and understand spoken English.After the two listening texts in each unit, there is a speaking section that provides a grammar point, a pronunciation rule, a speaking tip, and a presentation skill. At the end of each unit, students take what they have learned and use it to create a presentation. Once they have

Explore the creatures of the Star Wars galaxy with this colorful reader based on the Star Wars: Galaxy of Creatures animated shorts!Join adventurous droid 5F-RE (you can call him Aree) as a member of the Galactic Society of Creature Enthusiasts as he journeys across the galaxy to learn everything there is about wildlife big and small. From how to teach porgs to do tricks to how to brush a rancor’s teeth, Aree will get answers to the biggest – and silliest – creature questions.Adorable creature animations and beautifully drawn environments along with fun facts and slapstick comedy are sure to delight Star Wars fans of all ages!

A runaway queen. A reluctant prince. And a quest that may destroy them both.Eight years have passed since the Battle of the Serpent. But in the icy north, Lady Nore of the Court of Teeth, has reclaimed the Ice Needle Citadel. There she is using an ancient relic to create monsters of stick and snow who will do her bidding and exact her revenge.Suren, child queen of the Court of Teeth, and the one person with power over her mother, fled to the human world, where she lives feral in the woods. Lonely, and still haunted by the merciless torments she endured in the Court of Teeth, she bides her time by releasing mortals from foolish bargains. She believes herself forgotten until the storm hag Bogdana chases her through the night streets. Suren is saved by none other than Prince Oak, heir to Elfhame, to whom she was once promised in marriage and who she has resented for years.Now seventeen, Oak is charming, beautiful and manipulative. He’s on a mission that will lead him into the north, and h

最強雅思閱讀學習方式──收錄更多具高度整合能力的試題有效協助各考生釐清思路各閱讀文章亦附錄音 同步優化寫作實力閱讀和寫作一次就考取高分翻新試題並納入反覆出現的圖表考古題「魚的構造圖」強效「新舊合併」考點納入亂序摘要題出題、《劍16》考點和隱晦的填空題答題※ Hewes & Associates, based on its reputation can hire lawyers with 5.___________ or better capability.，這部分可以對應到But Hewes & Associates, based on its reputation, can have anyone whether it is a seasoned senior lawyer or a newly graduate whose ability is better than Ellen.，better capability對應到whose ability is better than，所以空格處要對應到or前面的敘述部分，並藉由seasoned推斷出要有經驗的，故答案要填experience。這題稍難。 ※ Eventually, Ellen has a 7.___________ schedule for the next interview because her sister’s wedding is on the same date.這部分對應到Ellen is astounded to hear the date because her sister’s wedding is on the same date. How to choose between a lucrative job that everyone is dying to get in and attending her sister’s wedding is what allures audiences to continue watching till the end of the first episode.所以可以反推出Ellen跟下次面試的時程是conflicting的，答案要選conflicting。（更多非傳統找到對應點和同義字就馬上答對的試題，請見書籍內容...

Small children are often asked to choose between a gendered binary – 'boy' or 'girl', 'pink' or 'blue'. This colourful picture book smashes these stereotypes and encourages the reader to follow their own way!"Girl or Boy?"What brings you joy?"Pink or blue?"It’s up to you.With vibrant illustrations and concise, poetic text, this powerful book teaches young children that there are no limits in what you can do and who you can be. You are unique!Translated from the original Portuguese by award-winning transgender poet Jay Hulme, My Own Way is an important, timely and beautiful celebration of identity, difference, and respect.

The fact that Snow did not sneak into “red China” to gather information constituting the basis of his Red Start over China all alone is in many instances isunderstood even by scholars.Mao Zedong’s biography has been the subject of an international mountain of commentary in China and elsewhere. Biographies praising Mao and those slandering him are all based on the American journalist Edgar Snow’s (1905–1972) account in Red Star over China for the route Mao traveled from early childhood through his youth.How the “Red Star” Rose introduces the image of Mao and the biographical information made known to the world through the publication of Red Star, and with its publication the circumstances which they fundamentally undermined. Ishikawa Yoshihiro uses Mao Zedong as raw material to examine from whence and how ordinary historical information and images which we habitually use unconsciously come into being.He desires to help readers to reconsider the historicity of the generation of not only

序The publisher invites Japanese readers and Satoyama supporters to spread these stories of harmonious coexistence between humanity and nature in rural communities in Taiwan, and to keep telling the story of the Satoyama Initiative. Let us keep learning from one another through exchange, strengthening the friendship between Taiwan and Japan on the road to landscape restoration, and contributing to global biodiversity. We are all in this together, and we can do it together.內容簡介There are four books in the set, about four rural communities in Taiwan. First, The Spring on the Highland explains how two generations of farmers in Gonglaoping, Fengyuan District, Taichung enjoy the fruits of kinship with the land following the restoration of the spring on the highland. Second, Farming Village Co. Unlimited is about a Satoyama-inspired enterprise based on crop diversification and creative local produce marketing in Gongrong, Sanzhi District, New Taipei City. Third, Letters the Blue Sea Wrote to t

The Big Red Dog is hitting the big screen! It's a race through NYC in this graphic novel based on the new live-action Clifford movie.Emily Elizabeth is struggling to fit in at home and in school when

The strongest Avenger teams up with two up-and-coming heroes on an internet-breaking adventure Can they pull the plug on evil? First, Captain Marvel joins Gwen Stacy, aka Ghost-Spider, on a web-based adventure Things get APP-rehenzive when a new craze--ClikClok--sweeps the city, and the Mad Thinker and the Awesome Android plan to use it for their own nefarious scheme Then, just as Carol is recovering from one mission, she starts another--without even knowing it When technical difficulties bring her face to face with her digital doppelg nger, she'll need some help from the Unbeatable Squirrel Girl to save the day Collects Marvel Action: Captain Marvel Vol. Two, issues #1-5, from writer Sam Maggs (The Unstoppable Wasp, My Little Pony/Transformers) and artists Sweeney Boo (Eat, and Love Yourself) and new talent Isabel Escalante

《迷霧之子》作者科幻系列《天防者》第三部。Spensa終於證明自己是最優秀的飛行員之一，穿梭銀河保護星球。當神秘古老的外星力量入侵，為戰勝這場戰役拯救銀河系，她意識到唯一的機會是她必須先解開自己身上的駭人謎團。From the #1 New York Times bestselling author of the Reckoners series, the Mistborn trilogy, and the Stormlight Archive comes the third book in an epic series about a girl who will travel beyond the stars to save the world she loves from destruction.Spensa has flown through the sky and voyaged past the stars in her quest to save humankind from the forces that threaten to destroy it. But now she must navigate a dangerous new frontier, which not one person has returned from alive: the mysterious realm of the Nowhere. In this eerie interdimensional world, time and space have come loose from the rules of reality and bands of rouge pirates fight for control of relics called momentos, without which, Spensa learns, a human trapped in the Nowhere may begin to forget their very identity. As it turns out, though, remembering where she came from is the least of Spensa's problems. Even in a pla

《忙碌小熊》冬季新書，推一推幫小熊登上纜車，滑雪去！幼兒也能輕鬆操作的推拉機關，伴隨QR-Code音檔中清晰的英國腔念出重複的韻律，讓忙碌小熊躍於紙上，拉近孩子與書的距離。Five easy-to-use sliders, a rhyming story and lots to spot and say in this series of bright, interactive board books for toddlers!Join Bizzy Bear and friends as they take a winter trip into the mountains! Little ones will love using the chunky sliders to help Bizzy go up in the ski lift, then zoom down the mountain again – and end the day with a spin around the ice-skating rink! Another exciting title in this best-selling series which encourages preschoolers to get involved in the storytelling.This story needs YOU! By pushing, pulling and turning the mechanisms, little hands can move the story onto the next scene and bring the rhyming text to life! The high level of interaction builds confidence and engagement with books, which is a key stepping-stone to reading for toddlers.Illustrated by multi-award-winning Benji Davies, illustrator of The Storm Whale, and Grandad’s IslandCollect the whole series; o

The third graphic novel installment in the Minecraft series of books, based on the world's best-selling videogame Minecraft! Candance, Evan, Grace, Tobi, and Tyler continue their adventures in the world of Minecraft and find themselves stumbling upon a mysterious ruined portal. Arriving to a strange and wonderful corner of the Nether that they've never seen, the group turn to their Nether expert, Grace, for help. However, as they face new threats, Grace finds that the team's reliance on her in the Nether is hitting a breaking point! The group discover themselves deep in a bastion and now have to face their most intense challenge yet...without their expert. It'll take the full force of the entire group to overcome the unknown!

Marketing Science Using R 重點探討行銷科學領域 相關統計觀念及R語言 ※內容詳解行銷科學的應用‧ ※強化解決行銷領域的問題 ※配合豐富的行銷實例說明 ※輕鬆理解並有效解決問題 本書適用於對行銷科學方法感興趣的讀者，不管是有心進入行銷領域的資訊管理背景人士，或是尋找量化分析工具的行銷從業人員，提供了理論與實務的最佳參考書籍。 【本書特色】 *直指行銷科學領域的應用層面，以解

Learn and play with Dr. Seuss in this ultimate Preschool workbook, with over 300 curriculum-based activities ranging from letters, numbers, social emotional learning, to science!This multi-subject, cu

當家族忙於處理來自各地的求救訊號時，葛瑞絲獨自追查一連串神祕竊案，線索竟指向孤島上一座破舊城堡……這場任務，將挑戰她的判斷與勇氣。Grace's family are wardens of the incredible Griffin Map, using its teleport technology to fight crime across Moreland. Right now it's all systems go at Griffin HQ, where Grace, her mum and her brother have their hands full answering a huge number of calls for help. They could really do with another warden on the team - but Mum believes their important work should be kept inside the family.Meanwhile, Grace is investigating a series of puzzling petty thefts. The clues lead her to a ramshackle castle on a lonely island, where the mystery only deepens. Will Grace be able to track down the thief?Award-winner Vashti Hardy celebrates kindness, found family and brilliantly inventive kids in this mystery-led, steampunk companion to The Griffin Gate.This book features a dyslexia-friendly layout and font, and illustrations throughout so that even more readers can enjoy it.

Named with a simple word meaning ‘cloth’, NUNO is one of Japan’s most important textile-design companies. Founded in 1984 by the legendary Junichi Arai and the company’s current director, Reiko Sudo, it is recognized as one of the world’s most innovative textile producers. Known for weaving together tradition and cutting-edge technology, NUNO designers are inspired by the past, present and future, integrating unexpected elements, such as paper or feathers or aluminium, with industrial methods, such as spatter-plating and chemical etching.All NUNO textiles – more than 2,500 have been created – are produced in Japan and are usually the handiwork of an individual craftsperson. Each bolt of cloth has a story to tell. Though their textiles appear regularly in books, textile exhibitions and museum collections, a comprehensive NUNO monograph has not existed - until now.Featuring the most outstanding, influential or experimental fabrics, the book is organized into seven chapters, each based on

Hilarious, illustrated school-based antics where everything that happens leads to DRAMA and RUNNING AROUND and even some FAINTING! Izzy and her friends are on a school trip to a big lake. Gary Petrie is excited because the lodges where they're staying have ROBES AND SLIPPERS! The lake is dark and deep and a bit scary. But it's when they open their packed lunches that they know! There's a MONSTER in the lake and it's coming for their CRISPS!Laugh-out-loud fun from Blue Peter Award winners Pamela Butchart and Thomas Flintham.Read more of Izzy's adventures!Baby Aliens Got My TeacherThe Spy Who Loved School DinnersMy Headteacher Is a Vampire RatAttack of the Demon Dinner LadiesTo Wee Or Not To Wee!There's a Werewolf In My Tent!The Phantom Lollipop Man!There's a Yeti in the Playground!Icarus Was RidiculousThe Broken Leg of Doom

本書是由《Franny K. Stein》與《Catwad》作者 Jim Benton 所創作的全彩圖像小說系列，透過兩位對世界充滿好奇的機器人 Jop 和 Blip，帶領讀者探索生活中最「奇妙又搞笑」的問題。從「企鵝放屁能在火星上聽到嗎？」「怎麼做一份龍肉三明治？」「為什麼我們需要兩隻耳朵？」這些看似無厘頭的提問開始，他們運用邏輯、STEM 知識與一點荒誕幽默，展開思考與推理。本書不僅充滿笑料，也鼓勵孩子們培養觀察、提問與獨立思考的能力。適合喜歡 Dav Pilkey 或 Dan Gutman 風格的讀者，為喜歡想東想西的孩子提供一次歡樂又啟發腦力的閱讀體驗。Two curious robots seek the answers to life's most pressing--and hilarious--questions in this full-color graphic novel series by Jim Benton, New York Times bestselling author and creator of Franny K. Stein and Catwad Join Jop and Blip as they follow their curiosity and investigate these seemingly odd questions using their own brand of logic, critical thinking skills, STEM knowledge, and humor. - Can you hear a penguin fart on Mars?- What if you wanted a dragon sandwich? - Why do we need TWO ears?With Jop and Blip, everything is worth knowing Perfect for fans of Dav Pilkey and Dan Gutman

From New York Times #1 bestselling author, Nathan W. Pyle, comes an out-of-this-world picture book about two aliens who encounter a vibrating creature, based on his STRANGE PLANET series.Join Strange

Sophie the otter needs help finding seashells with matching patterns in a lift-the-flap board book based on a best-selling children’s game.Down on the ocean floor, Sophie the otter is collecting pairs

Mehar, a young bride in rural 1929 Punjab, is trying to discover the identity of her new husband. She and her sisters-in-law, married to three brothers in a single ceremony, spend their days hard at work in the family's 'china room', sequestered from contact with the men. When Mehar develops a theory as to which of them is hers, a passion is ignited that will put more than one life at risk.Spiralling around Mehar's story is that of a young man who in 1999 travels from England to the now-deserted farm, its 'china room' locked and barred.In enforced flight from the traumas of his adolescence - his experiences of addiction, racism, and estrangement from the culture of his birth - he spends a summer in painful contemplation and recovery, before finally finding the strength to return 'home'.

Best-selling author Rick Riordan presents author Tehlor Kay Mejia's thrilling adventure based on the Mexican legend of La Llorona, now in paperback.*"A new hero's fantastic and fantastical adventure--

A lone astronaut must save the earth from disaster in this incredible new science-based thriller from the #1 New York Times bestselling author of The Martian. Ryland Grace is the sole survivor on a de

A story of telling truth from lies―and finding out what being a hero really means.There are two things Trevor loves more than anything else: playing war-based video games and his great-grandfather Jac

From the mysteries and wonders of the natural world to man-made marvels in science, technology, and innovation, planet Earth is full of fun and fascinating things to discover at any age. Although most knowledge can be obtained online today, there is nothing quite like the charm of learning from a book packed with witty writing and illustrations like Diarmuid Ó Catháin’s compelling series on Little-known Facts. 9789887972600 Animals 動物The Animals edition presents some of the most intriguing details about the creatures that inhabit our land, air, and sea using clever rhymes and visuals that make for an enjoyable and eye-opening reading experience.9789887972648 The Human Body 人體奧秘Brimming with character, The Human Body edition presents readers with the unique opportunity to explore the extraordinary and unexpected traits and biology of people in an easy-to-remember and visually delightful way.

Introduce your baby to fairy tales and first words with sturdy Ladybird Little Pop-Ups. Based on the popular tale of Hansel and Gretel, this simplified story with sturdy, integrated pop-ups is perfect

Introduce your baby to fairy tales and opposites with sturdy Ladybird Little Pop-Ups. Based on the popular tale of Goldilocks and the Three Bears, this simplified story with sturdy, integrated pop-ups

2022年藍彼得圖書獎入圍書！以趣味生動的漫畫形式，圖解石器時代史前人類的食衣住行與生存智慧 。翻開本書，加入你的穴居朋友，一同打獵、製作生活工具，展開石器時代精彩刺激的一天吧！Shortlisted for the Blue Peter Awards 2022 Best Books with FactsSet in Northern Europe around 18,000 years ago, this fascinating information book explores a day in the life of a typical Stone-Age child. Auri lives with her extended family in a cave, which shelters them from bad weather, provides protection from dangerous animals and is close to the river, where they gather fresh water and food.Readers will learn key skills alongside Auri, as her dad shows her how to make and set a fish trap, while Grandpa demonstrates how to fashion a sharp spear from sticks and flint. She explains how to track animals by looking for footprints, nibbled plants and droppings, and make fire using a few simple handmade tools.This fictional account of a Stone-Age family enables young readers to imagine what life may have been like for a child of their age. The comic strip illustrations are colourful, humorous and infor

Judy Moody meets Netflix's One Day at a Time in this first book in a new chapter book series featuring a young Cuban American girl who tries to find adventure based on the classics she read with her b

莫內喜歡畫光，特別是清晨河面的光。他不跟從傳統的畫法，而是用自己的方式，捕捉眼前轉變的景色。一開始沒有人懂他的畫，但他不氣餒，持續創作，最後讓大家看見畫裡的光和感覺。這本繪本帶我們認識這位愛畫光的畫家，也鼓勵我們用自己的眼睛看世界。A new picture book about the iconic artist Claude Monet, from the Caldecott-Award winning team that created The Noisy Paint Box.Claude Monet is one of the world's most beloved artists--and he became famous during his own lifetime. He rejected a traditional life laid out clean and smooth before him. Instead he chose a life of art. But not just any art: a new way of seeing that came to be called impressionism.Monet loved to paint what he saw around him, particularly the Seine River. He was initially rejected for using bright colors, tangled brushstrokes--condemned for his impressions. But soon art dealers and collectors were lining up each morning to see as Monet saw. Monet, however, waited only for the light. The changing light...each morning he had a dozen canvases on hand to paint a dozen different moments. His brush moved back and forth, chasing sunlight--putting in the

美國出版社Penguin Random House 資深總編、審稿人Dreyer運用15年的校對經驗，幽默簡潔筆法提出運用標點符號、選字等大大小小實用的寫作技巧，讓你無痛學習英文寫作。Adapted from the New York Times bestseller by Random House's longtime copy chief, this informative and witty guide to writing and grammar, written especially for a younger audience, entertains as well as instructs.Full of advice, insider wisdom, and fascinating facts, this book will prove to be invaluable to anyone who wants to be confident in their writing skills, or anyone who enjoys the power of language. Explored throughout are the mysteries of using punctuation, word choice decisions, and more, presented in a clear, concise and accessible manner made fun!

Hilarious, illustrated school-based antics where everything that happens leads to DRAMA and RUNNING AROUND and even some FAINTING!When a session of extreme dancing leaves Maisie in hospital with a broken leg, things take a turn for the weird! Strange noises in the ward at night, missing cuddly toys and a sandwich trolley that only ever has TUNA sandwiches. Could Maisie’s leg be CURSED? If it is, and it DEFINITELY IS, then everything is DOOMED!Laugh-out-loud fun from Blue Peter Award winners Pamela Butchart and Thomas Flintham.Read more of Izzy’s adventures!Baby Aliens Got My TeacherThe Spy Who Loved School DinnersMy Headteacher Is a Vampire RatAttack of the Demon Dinner LadiesTo Wee Or Not To Wee!There’s a Werewolf In My Tent!The Phantom Lollipop Man!There’s a Yeti in the Playground!Icarus Was Ridiculous

《Fantastically Great Women》系列女力回歸！童趣筆觸搭配幽默解說，讓八位才華橫溢的傑出藝術家用她們的生命故事告訴你如何用藝術找回自己的身分，而她們大膽無畏、充滿鮮活生命力的創作又是如何改變了藝術史的發展。Over half of all the visual artists working today are women, but the paintings and sculptures shown in many galleries and musuems tell a different story because they're usually the work of men. In this book Kate Pankhurst, descendent of Emmeline Pankhurst, tells the fascinating stories of some of history's most talented female artists and shows how their creations transformed the art world. Meet Elisabeth Le Brun, who painted people smiling (which was very unusual at the time). Uncover the untold story of Emily Kame Kngwarreye, the Aboriginal elder whose paintings expressed the history of her people. And then there's Peggy Guggenheim, the art collector who helped bring many talented artists into the spotlight. Frida Kahlo found the greatest muse for her art was indeed herself -- painting became a way to express her feelings and find her identity. Including comic strips, fam

梅樂蒂在墓園的一角發現一棟廢棄老屋，還有一名神祕男孩海爾藏身其中。海爾聲稱自己是見習間諜，正秘密監視一名當地罪犯。但馬修與傑克可不相信這套說法，決定反過來觀察他，逐步揭開埋藏在社區中的驚人祕密。Return to the wonderful characters of beloved, bestselling, award-winning THE GOLDFISH BOY, one of the most talked-about debut children's books of recent years. Melody Bird has discovered an old abandoned house in the corner of the graveyard, and a mysterious boy hiding out there... Hal tells her that he's a spy-in-training, using the house as a base for his undercover surveillance of a known local criminal.Her friends Matthew and Jake don't believe that a teenager would be entrusted with this mission and turn the tables to spy on him, uncovering secrets and unravelling a mystery as they go.

尼琪．葛萊姆斯以創新詩法，重新詮釋哈林文藝復興時期被忽視的女性詩人作品。本書結合多位非裔美國女性插畫家的獨特畫作，展現跨時代女性詩人的聲音與力量。附有序文、歷史簡介與詩人小傳，是兼具藝術性與教育價值的珍貴詩集。From Children's Literature Legacy Award-winning author Nikki Grimes comes a feminist-forward new collection of poetry celebrating the little-known women poets of the Harlem Renaissance--paired with full-color, original art from today's most talented female African-American illustrators. For centuries, accomplished women--of all races--have fallen out of the historical records. The same is true for gifted, prolific, women poets of the Harlem Renaissance who are little known, especially as compared to their male counterparts. In this poetry collection, bestselling author Nikki Grimes uses The Golden Shovel poetic method to create wholly original poems based on the works of these groundbreaking women-and to introduce readers to their work. Each poem is paired with one-of-a-kind art from today's most exciting female African-American illustrators: Vanessa Brantley-Newton, Cozbi A. Cabrer

If one son is lucky, then ten must be great luck indeed! But where does that leave an only daughter? Based on a true family story, this inspiring picture book about a different perspective tells the t

Provide engaging math practice and see children’s math and problem-solving skills improve with Skill Sharpeners: Math activity books! The colorful theme-based activities create enjoyable learning expe

Give your child positive math experiences and strong math foundations with Smart Start: Math Stories and Activities. The colorful activities introduce math concepts in creative ways using math stories to help children recognize number relationships in the world around them.Smart Start: Math Stories and Activities workbooks provide structured weekly activities to help children practice and learn numbers, counting, measurement, addition and subtraction, shape recognition, and graphing. Audio story read-alouds with colorful illustrations help students learn math concepts and make connections to the real world. Illustrated activities provide meaningful practice in a variety of formats, giving children multiple opportunities to achieve understanding.Math activities:Provide strong math foundations that teach the most important math skills.Include creative and fun lessons thathelp children create positive math connections.Provide reward stickers to motivate children to complete the activities