All About Number 7 | 数字7的认识与运算

📚 All About Number 7 | 数字7的认识与运算

Today we are going on a number adventure to meet a very special digit — the number 7! Seven is everywhere: in a rainbow, in a week, and even in your fingers when you hold up five and two more. This lesson will help you recognise, write, count, compare, and even do simple sums with the number 7. Let’s jump into the wonderful world of 7 together!

今天我们要开启一场数字冒险，认识一位特别的朋友——数字7！7 无处不在：在彩虹里，在星期里，甚至在你伸出 5 个手指再加 2 个手指的时候。这节课会帮助你认识 7、书写 7、数数、比较大小，还能用 7 做简单的加减法。让我们一起跳进数字 7 的奇妙世界吧！

1. Meet Number 7 | 认识数字7

Number 7 looks like a straight line going down, with a little roof on top. Imagine it like a walking stick with a hat! When you see the symbol ‘7’, it means seven things. You can find 7 on clocks, on TV channels, and on birthday cards.

数字 7 看起来就像一条竖直的线，上面戴了一顶小小的“帽子”。你可以把它想象成一根戴着帽子的手杖！当你看到符号 ‘7’ 的时候，就表示有七个东西。你可以在钟表上、电视频道上和生日贺卡上找到 7。

Let’s practise spotting 7. Look around the room — can you find the number 7? Maybe on a calendar or a book page. Point and say: “Seven!”

我们来练习发现 7。看看房间里——你能找到数字 7 吗？可能在日历上或者书页上。指出来并说：“七！”

2. Counting to 7 | 数到7

Counting to 7 is easy! Start from 1 and go step by step: 1, 2, 3, 4, 5, 6, 7. Use your fingers: hold up one finger, then two, three, four, five, six, and finally seven. Seven is one more than six. How many steps does it take to get to the seventh block on the floor? Let’s count together!

数到 7 很简单！从 1 开始，一步一步来：1, 2, 3, 4, 5, 6, 7。用你的手指：伸出 1 根手指，再伸出 2 根、3 根、4 根、5 根、6 根，最后伸出 7 根。7 比 6 多 1。走到地板上第七个格子上需要几步呢？我们一起来数！

Play a counting game: clap your hands seven times. Each clap is one number. Clap: 1, 2, 3, 4, 5, 6, 7. Shout “Seven!” at the end.

玩一个数数游戏：拍手七次。每次拍手就是一个数字。拍手：1, 2, 3, 4, 5, 6, 7。最后大声喊出“七！”

3. Writing Number 7 | 书写数字7

Writing the number 7 is fun. Start at the top left, draw a short line to the right — that’s the roof. Then without lifting your pencil, draw a slanting line down to the bottom left. Practice in the air with your finger: “Across the top, then slant down — 7!”

书写数字 7 很有趣。从左上角开始，向右画一条短短的横线——这就是那个屋顶。然后铅笔不要离开纸，向左下角画一条斜线。先用手指在空中练习：“横过顶部，然后斜下来——7！”

You can also write 7 in a tray of sand or on a foggy window. Try writing it big and small. Remember: the top line is flat, not too long, and the slant is straight. Great job!

你也可以在沙盘里或者在起雾的窗户上写 7。试着写大一点的和小一点的。记住：上面的横线要平，不要太长，斜线要直。真棒！

4. Number Line Position | 数轴上的位置

On a number line, 7 sits right after 6 and right before 8. Let’s draw a number line from 0 to 10:

在数轴上，7 就坐在 6 的后面、8 的前面。我们来画一条从 0 到 10 的数轴：

0 —— 1 —— 2 —— 3 —— 4 —— 5 —— 6 —— 7 —— 8 —— 9 —— 10

The number 7 is closer to 10 than 0 is. When you jump forward 7 steps from 0, you land on 7. When you jump back 1 step from 7, you land on 6. The number line helps us see the order of numbers.

数字 7 比 0 更靠近 10。当你从 0 向前跳 7 步时，就落到了 7 上。当你从 7 往回跳 1 步时，就落到了 6 上。数轴可以帮助我们看到数字的顺序。

5. What Comes Before and After? | 前后数字

Every number has neighbours. The number that comes just before 7 is 6. The number that comes just after 7 is 8. Thinking about neighbours helps us understand the counting order.

每个数字都有邻居。排在 7 前面的数字是 6。排在 7 后面的数字是 8。想数字的邻居可以帮我们理解计数的顺序。

Before 7 → 6 (one less)

7 的前面 → 6（少 1）
After 7 → 8 (one more)

7 的后面 → 8（多 1）

If you forget what comes next, just start counting from 1 and stop when you hear 7. The next number you say is 8!

如果你忘记了后面的数字，只要从 1 开始数，听到 7 的时候停下来。接下来你念出的数字就是 8！

6. Comparing Quantities: More or Less than 7 | 比较多少：比7多还是少？

Let’s compare groups. If you have 7 apples and your friend has 5 apples, who has more? 7 is greater than 5, so you have more. We write this as 7 > 5 or 5 < 7. The open mouth of the crocodile always eats the bigger number!

我们来比较一下。如果你有 7 个苹果，你的朋友有 5 个苹果，谁的更多？7 大于 5，所以你的更多。我们可以写成 7 > 5 或者 5 < 7。鳄鱼的嘴巴总是对着较大的数字！

Practice with toys: put 7 blocks on one side and 9 blocks on the other. Which side has fewer? 7 is less than 9, so 7 < 9. Seven is smaller than ten but bigger than six.

用玩具练习：一边放 7 块积木，另一边放 9 块。哪边的更少？7 小于 9，所以 7 < 9。7 比 10 小，但比 6 大。

7. Making 7: Number Bonds | 7的组成：数字组合

Number bonds show how 7 can be built from two smaller numbers. Think of splitting 7 counters into two groups. Here are the pairs that make 7:

数字组合展示了如何用两个较小的数字组成 7。想象把 7 个计数片分成两组。下面是组成 7 的数对：

Part 1 / 部分1	Part 2 / 部分2	Whole / 整体
0	7	7
1	6	7
2	5	7
3	4	7
4	3	7
5	2	7
6	1	7
7	0	7

Knowing these bonds by heart will make addition and subtraction very easy! You can sing a little song: “0 and 7, 1 and 6, 2 and 5, 3 and 4, all make 7, let’s learn more!”

牢记住这些组合会让加减法变得非常简单！你可以唱一首小歌：“0 和 7，1 和 6，2 和 5，3 和 4，全都组成 7，我们再学更多！”

8. Addition within 7 | 7以内的加法

Addition means putting together. When we add numbers to make 7 or add within 7, we can use the number bonds we just learned. For example: 4 + 3 = 7. Four blocks plus three blocks gives us seven blocks altogether.

加法就是合在一起。当我们用加法得到 7 或者在 7 以内做加法时，可以用刚学过的数字组合。例如：4 + 3 = 7。四块积木加三块积木，总共七块积木。

4 + 3 = 7

Try another: 5 + 2 = 7. And 6 + 1 = 7. Adding zero is fun too: 7 + 0 = 7. Any number plus zero stays the same! Fill in the missing number: 2 + __ = 7? Correct, 5!

再试一个：5 + 2 = 7。还有 6 + 1 = 7。加零也很有趣：7 + 0 = 7。任何数加零都保持不变！填空：2 + __ = 7？对，5！

9. Subtraction within 7 | 7以内的减法

Subtraction means taking away. If we start with 7 and take some away, we find what is left. 7 – 2 = 5. Seven balloons, two fly away, five are left. The number bond helps us: since 5 and 2 make 7, removing 2 leaves 5.

减法就是拿走。如果我们从 7 开始，拿走一些，就得到剩下的。7 – 2 = 5。七个气球，两个飞走了，剩下五个。数字组合能帮助我们：既然 5 和 2 组成 7，那么拿走 2 就剩下 5。

7 – 2 = 5

Practise more: 7 – 3 = 4; 7 – 6 = 1; 7 – 7 = 0. When we take away all seven, we are left with nothing. That’s zero! Can you solve: 7 – 0 = ? That’s right, 7! Taking away zero changes nothing.

多练习几个：7 – 3 = 4；7 – 6 = 1；7 – 7 = 0。当我们拿走全部七个时，就一个也不剩了，那就是零！你能算出来吗：7 – 0 = ？对，7！拿走零什么也不会变。

10. Fun Review: Find Number 7 | 趣味复习：找到数字7

Let’s play a quick round of ‘Spot the 7’! I’ll describe a scene, and you find the 7. There is a row of houses numbered 1, 2, 3… up to 10. Which house is number 7? Yes, the seventh one. In a parking lot, cars are parked in order. The seventh car is red. Where is it? After the sixth car!

我们来玩一轮“找到数字 7”吧！我描述一个场景，你来找 7。有一排房子，编号从 1, 2, 3… 一直到 10。哪一个是 7 号房子？对，第七个。在停车场里，汽车按顺序停着。第七辆车是红色的。它在哪儿？在第六辆车后面！

Now let’s do a quick quiz:

What number comes before 7? 6.

7 的前面是几？6。
What do we get when we add 3 and 4? 7.

3 加 4 等于几？7。
If I have 7 cookies and eat 1, how many left? 6.

如果我有 7 块饼干，吃掉 1 块，还剩几块？6 块。
Which is greater, 7 or 5? 7.

哪个更大，7 还是 5？7。

You are now a Number 7 expert! Keep practising by counting things around you and organising them into groups of 7. Seven buttons, seven stones, seven hops. The more you play with 7, the better you will remember it.

你现在是数字 7 的小专家了！继续用身边的东西练习数数，并把它们分成 7 个一组。七颗纽扣、七块石头、跳七下。和数字 7 玩得越多，你就记得越牢。

Published by TutorHao | Mathematics Revision Series | aleveler.com

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All About Number 7 | 数字7的认识与运算