Hey there! Today, we’re going to learn about something called subtraction. It’s like a magic trick where you take some things away and see how many are left. Let’s dive into a fun story to understand it better!
Imagine it’s your sister’s birthday, and you have a cake. You have nine candles to put on the cake. But wait! Your friend comes over and asks if he can borrow five candles for his brother’s cake. Now you need to figure out how many candles you’ll have left for your sister’s cake. Let’s solve this mystery together!
Subtraction is when you take some things away from a group and see how many are left. It’s like counting backward. To do this, we use a special symbol called the minus sign (-). It helps us know that we are taking away.
Let’s start with the number of candles you have. You have nine candles. Your friend wants to borrow five candles. So, we write it like this:
9 – 5 = ?
Now, let’s figure out how many candles are left. We can draw nine lines to show the nine candles:
|||||||||
Now, let’s cross out five lines because your friend is taking those candles:
||||||||||
How many lines are left? That’s right, there are four lines left! So, you have four candles left for your sister’s cake.
Now that you know how to subtract, try solving this one: You have seven apples, and you give three apples to your friend. How many apples do you have left? Draw it out and see if you can find the answer!
Remember, subtraction is a fun way to see how many things are left when you take some away. Keep practicing, and you’ll become a subtraction superstar!
Subtraction Scavenger Hunt: Go on a subtraction scavenger hunt around your home or classroom. Find a group of objects, like toys or books, and count how many there are. Then, take some away and count how many are left. Write down your subtraction story, just like the candle mystery. For example, “I had 10 toy cars, and I gave 3 to my brother. Now I have 7 cars left!” Share your story with a friend or family member.
Subtraction Art: Create a subtraction picture using stickers or stamps. Start with a certain number of stickers on a piece of paper. Then, remove some and draw a line through the space where they were. Count how many are left and write the subtraction equation below your artwork. For example, if you start with 8 stickers and remove 3, write “8 – 3 = 5” under your picture.
Subtraction in Nature: Next time you’re outside, look for groups of things in nature, like leaves or rocks. Pick a number of them to start with, then pretend a gust of wind or a wave takes some away. Count how many are left and create a subtraction story. For example, “I found 6 leaves, and the wind blew 2 away. Now I have 4 leaves left!” Share your nature subtraction story with your class.
Sure! Here’s a sanitized version of the transcript:
—
[Music]
I can’t believe it! What’s wrong?
It’s my sister’s birthday, and I have nine candles for a cake. My friend wants to borrow five candles for his brother, but I need to make sure I have enough candles left for my sister. I’m not sure how to figure this one out.
Don’t worry, we can solve this problem using subtraction.
Subtraction? You mean you take an amount away from another amount?
Exactly! When creating a subtraction equation, start with the larger number. In this case, it’s the number of candles you have. I have nine candles.
Alright, the number nine. We know that my friend wants to borrow five candles. We need to add a symbol between the two numbers to show that we are subtracting. This symbol is called the minus sign; it shows that we have nine candles and we are going to take away five candles.
Let’s draw nine lines to represent the nine candles.
—
Let me know if you need any further modifications!
