If you go into the forest with friends, stay with them.{#blank#}1{#/blank#}If you do get lost, this is what you should do.

    Sit down and stay where you are. Don't try to find your friends. Let them find you. You can help them to find you by staying in one place.

    {#blank#}2{#/blank#}Give them a signal(信号)outing or whistling (吹口哨) three times. Stop. Then shout or whistle three times again. Any signal given three times is a call for help.

    Keep on shouting or whistling, always three times together. When people hear you, they will give two shouts or two whistles.{#blank#}3{#/blank#}

    If you don't think that you will get help before night comes, try to make a small room with branches(树枝).

    {#blank#}4{#/blank#} ? You would have to leave your little branch room to look for something to eat and drink. Don't just walk away. Pick up small branches and drop them as you walk so that you can find your way back.

    That is all to say.{#blank#}5{#/blank#}

    We spoke to three students from around the world about different national holidays. There are different customs (习俗) for each festival.

    Tan Xiaodong, 15, Hong Kong, China

    “It'll soon be Chinese New Year. Before it, we'll clean the house and decorate it for good luck. Every shop is going to close for a few days and we'll go out a lot to celebrate in the streets. We might go and see the lion and dragon dances in the city center. I love this festival.”

    Wendy, 16, Sydney, Australia

    “Australia Day is on 26th January and it's an important holiday here. We always have a Monday off, so we celebrate for three days. My parents and I go to the countryside for a picnic and friends always come over. Many people go to beach parties or street parties and there's lots of music and dancing. What fun！”

    Amy, 14, New York, USA

    “The first Thanksgiving Day was hundreds of years ago when Europeans who came to America thanked God for his help. It's still a very important day for families to be together. This year we're going to visit my grandparents and we'll eat a delicious meal of turkey. Thanksgiving Day is on the fourth Thursday in November every year.”

Information Card

    Ella loves her grandpa. He lives in Texas and takes a train to see Ella every month. Ella wants him to come every week because he is good at telling stories and cooking.

    One day, Ella asks her mom to make some chicken. Grandpa often makes it. Ella's mom says, "I'll try, but no one makes it as well as(像……一样好) Grandpa does. "

    Ella watches her mom make the sauce(酱) for the chicken. It looks delicious. When the chicken is ready, Ella's family sit down to eat. Her mom is right—no one makes it as well as Grandpa does.

    The next day, Ella's grandpa comes to see her. Ella tells him the story about her mom trying to make the chicken. Her grandpa says, "That's a great story." Then he teaches Ella and her mom how to make the chicken.

Maker Moment

    Last year, Izzy Goldstein, 12, learned in science class that we can reduce air pollution by using natural energy sources, such as wind and solar power, instead of gasoline. This made her wonder what she and her schoolmates could do to help the environment. "Maybe if my school got  a bike rack（架子）, more kids would bike to school instead of depending on cars," Izzy told TIME for Kids. Rather than ask their school to buy a rack, Izzy and her friends decided to make a bike rack by themselves.

    They came up with a design. They calculated how much wood they might need. They measured how long the boards should be. They used power tools to cut them and put them together safely. And they did all this in their school's makerspace.

    Makerspaces are workspaces where kids can learn to create objects using technology, engineering, art and design. These spaces often feature a mix of high-tech machines, such as 3D printers and robotic Kits(工具箱), and simple materials like clay and cardboard.

    Izzy goes to the Harley School in New York. It is one of a growing number of schools across the United States with makerspaces. Makerspaces are largely inspired by Maker Faires(创客盛会), which are events that give people a chance to share their creative projects. Each year, about 250,000 people attend the Maker Faires in San Mateo, California, and Queens, New York. Maker Faires have also spread to countries around the world, including Egypt, France and Thailand.

    Schools are introducing makerspaces to the curriculum(课程)because makerspaces give kids a way to have ideas and build something from those ideas. Kima Enerson is a makerspace teacher at the Harley School. But she says kids can become extraordinary makers in an ordinary classroom, too.

    In Harley's Lower School (pre-kindergarten to Grade 4), students learn about the basics of computer software. By third grade, they study coding and how electricity works. In sixth grade, they learn to safely use tools such as drills and saws. When students get to high school, Enerson shows them how to apply their skills to solve global problems. "Throughout the process of designing, students are learning to create something to better the world," she says

    Some people seem have unusual memories. Zheng Aiqiang, a" memory athlete" on TV show Super Brain, can remember 2, 660 numbers in just one hour!

    You would think people like him must have special brains. But

according to a recent study by researchers from America and Holland, the brain structure(结构) of ordinary people and 23 of the world's leading memory athletes shows no difference.

    Good memories can be trained. New research in the magazine Neuron suggests that a person will get a super memory with just six weeks of hard training.

    Researchers found that a technique (技巧) called loci, invented by the ancient Greeks, can greatly help improve memory.

    By using loci, you are using your imagination to improve the brain's memory networks. You can link (关联) something you need to remember with a place that you know very well. For example, to remember a list of numbers, imagine yourself walking through your house. Each thing is linked to a number. For example zero could be the handle on the door and five could be the painting on the wall.

    In one study, some ordinary people were given 20 minutes to remember 72 nouns. At the beginning, they could only remember 26 words, but when they were taught loci, they could remember 62 words.

    "Not everyone can become a memory winner. But everyone using the technique can improve his memory greatly," said Boris Konrad, one of the researchers in the study.

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