DK全球视觉系列How to be a Math Wizardr STEM如和成为一个数学天才

I was excited to write this book and share my love of math with you. It’s something that has fascinated me since I was your age and continues to amaze me with every new thing I learn.
我很高兴能写这本书，和你们分享我对数学的热爱。从我像你这么大的时候起，它就一直让我着迷，而且我学到的每一件新东西都让我惊叹不已。
Math is about solving problems and being creative. The world is full of problems waiting to be solved. Many people around the world work as scientists, engineers, technologists, and in hospitals—all of them use math skills to help people and create solutions.
数学是关于解决问题和创造力的。世界上充满了有待解决的问题。世界各地的许多人都是科学家、工程师、技术人员，在医院里，他们都使用数学技能来帮助人们并创造解决方案。
I hope you’ll be able to use your creativity as you try the activities packed into this book. As you turn the pages, you’ll realize that math isn’t just about the classroom or homework.
我希望你在尝试这本书中的活动时能发挥你的创造力。翻开书页，你会发现数学不仅仅是课堂或家庭作业。
It’s all over our world and is done by almost everyone every day. The food you eat, the buildings you visit, and your own body—all are made possible by a fantastic balance of mathematics.
它遍布我们的世界，几乎每个人每天都在做。你吃的食物，你参观的建筑，你自己的身体，都是由一个奇妙的数学平衡。
Math shows up everywhere. Before you get started, I have one special request for you. When you learn a cool new bit of math, read about an amazing person, or build something new from this book, share it with your friends and family.
数学无处不在。在你开始之前，我有一个特别的要求。当你学了一门很酷的新数学，读了一本关于一个了不起的人的书，或者从这本书中创造了一些新的东西，与你的朋友和家人分享。
Help them be math wizards with you! Have conversations with the people around you whenever and wherever you see math. Keep talking and thinking about it— maybe one day you’ll get to write a book about it too. Anyone can be a math wizard. Let’s get you started!
帮助他们成为你的数学奇才！无论何时何地看到数学，都要与周围的人交谈。继续谈论和思考它-也许有一天你也可以写一本关于它的书。任何人都可以成为数学向导。让我们开始吧！

How this book works In How to be a Math Wizard, you will learn how to think and act like a mathematician. The book is packed with fun activities, important topics, and people who have used their math skills to do amazing things.
这本书如何工作在如何成为一个数学向导，你将学习如何思考和行为像一个数学家。这本书充满了有趣的活动，重要的话题，以及那些用他们的数学技能做出惊人事情的人。

Awesome activities Learn on the job with the activities throughout this book, which show key ideas within math. There are also crafts to make math devices, such as an abacus, and memory aids that help you remember important facts.
很棒的活动在工作中学习贯穿这本书的活动，其中显示了数学的关键思想。也有手工制作的数学设备，如算盘，和记忆辅助工具，帮助你记住重要的事实。

Safety first All of the projects in this book should be done carefully. If you see this symbol at the top of a page, it means that you will need an adult to help you with the activity.
安全第一这本书中所有的项目都应该仔细做。如果你在页面顶部看到这个符号，这意味着你需要一个成年人来帮助你完成这个活动。

Top topics Learn about some of the key math topics, such as division, measuring, and decimals. These will support and build on what you’ve learned through the craft projects
热门主题学习一些关键的数学主题，例如除法、度量和小数。这些将支持并建立在您通过手工项目所学到的基础上

Math heroes Meet the inspirational people who have used math to make a difference in the world. And remember: anyone can learn to be a math wizard.
数学英雄会遇到那些用数学改变世界的鼓舞人心的人。记住：任何人都可以学习成为一个数学向导。

Getting ready You can do many of the activities in this book right away. Rummage around at home to see if you can gather the items you need. Here are instructions on how to use some of the most important math tools you’ll need.
准备好后，你可以马上完成本书中的许多活动。在家里到处翻找，看看你能不能找到你需要的东西。以下是一些你需要的最重要的数学工具的使用说明。

If you look closely, there’s math involved in how food looks, the way it’s made, and how we divide it up. From making recipes to describing the shape of your favorite snack, learn to see the math behind the food on your plate.
如果你仔细观察，就会发现数学涉及到食物的外观、制作方式以及我们如何分配食物。从制作食谱到描述你最喜欢的零食的形状，学会了解你盘子里食物背后的数学。

Counting You’ve probably been counting since you were little. It’s a simple way of finding how many of something you have. Everyday life is full of counting. If you want to give each of your friends an orange, you’d count up the oranges. You’d need to count a lot more pieces of food if you were giving one to everybody in your school!
你可能从小就开始数了。这是一个简单的方法来发现你有多少东西。每天的生活都充满了计算。如果你想给你的每个朋友一个桔子，你就把桔子数起来。如果你给学校里的每个人一份食物，你就需要数更多的食物！

More than or less than? Finding out if one number is bigger than another is called comparing numbers.
大于或小于？找出一个数是否大于另一个数叫做比较数。
For example, two is more than one. This type of math is useful in real life if you need to make sure you’ve shared something fairly.
例如，二比一更重要。如果你需要确保你公平地分享了一些东西，这种数学在现实生活中是有用的。
If you take six tomatoes and your friend is left with four, then you have taken more tomatoes than your friend.
如果你拿走了六个西红柿，而你的朋友只剩下四个，那么你拿走的西红柿比你的朋友多。

Watermelon fractions What do a slice of pizza and an orange segment have in common? They’re both fractions! When we split something up into parts, we create fractions. Here’s how you can split up a watermelon plate.
西瓜碎片一片比萨饼和一片橘子碎片有什么共同点？他们都是分数！当我们把东西分成几部分时，我们就创造了分数。这是你如何把西瓜盘子分开的方法。

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