Hello, everyone! Today, we’re going to learn about comparing the lengths of different objects using centimeters. This means we’ll look at two objects and see which one is longer. Then, we’ll find out how much longer it is!
To find out how much longer one object is than another, we need to measure both objects first. After measuring, we subtract the length of the shorter object from the length of the longer object. Let’s see how this works with an example!
Imagine we have two nails. The first nail is 5 centimeters long, and the second nail is 3 centimeters long. We can see that the 5-centimeter nail is longer. But how much longer? We subtract to find out! We put the bigger number on top: 5 minus 3 equals 2. So, the first nail is 2 centimeters longer than the second nail.
Now, let’s try this with some objects on our worksheet. We’ll look at a paperclip and an eraser. The paperclip is 2 centimeters long, and the eraser is 5 centimeters long. To find out how much longer the eraser is, we subtract: 5 minus 2 equals 3. So, the eraser is 3 centimeters longer than the paperclip. Let’s circle 3 on our worksheet!
Next, let’s compare a marker and a pen. The marker is 8 centimeters long, and the pen is 12 centimeters long. To find the difference, we subtract: 12 minus 8 equals 4. This means the pen is 4 centimeters longer than the marker. Let’s circle 4 on our worksheet!
When you want to find the difference in length between two objects, follow these steps:
Thanks for learning with us today! Keep practicing, and you’ll become a pro at comparing lengths. See you next time!
Measure and Compare at Home: Find two objects at home, like a spoon and a fork. Use a ruler to measure each object in centimeters. Write down the lengths and then subtract the shorter length from the longer one. How much longer is one object than the other? Share your findings with a family member and explain how you found the difference!
Length Hunt: Go on a length hunt around your house or classroom. Find three pairs of objects to compare, such as a book and a pencil, a shoe and a sock, or a toy car and a block. Measure each object and record the lengths. Subtract to find out how much longer one object is than the other in each pair. Draw a picture of each pair and write the difference in length next to them.
Creative Story Time: Imagine you are a detective who needs to find out which of two mysterious objects is longer. Write a short story about your adventure, including the objects you measured, their lengths, and how you figured out the difference in length. Share your story with the class or a family member and show them your measuring skills!
Here’s a sanitized version of the provided YouTube transcript:
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Welcome to Kids Academy! Hello, boys and girls! This is Teacher Mike, and today I’d like to talk to you about comparing the lengths of objects in centimeters. This means we’re going to take two different objects and see which one is longer, and then we’ll find out how much longer that object is.
So, let’s discuss a strategy for accomplishing this. To figure out how much longer one object is than another, first, you have to measure both objects. Then, you’ll take the length of the shorter object and subtract it from the length of the longer object.
Let’s look at an example. Let’s say we measured two different nails. The first nail we measured was five centimeters long, and the second nail was three centimeters long. It’s easy to tell that the five-centimeter nail is longer, but how much longer? We can subtract to find out. We always put the bigger number (the longer object) on top and the shorter object below. So, let’s subtract: 5 minus 3. We get 2, so the difference in length between these two objects is 2 centimeters, and we found this out through subtraction.
Now, let’s read the directions for our worksheet and get started right away. We’ll use this strategy to help us complete the worksheet. In each pair of objects, check the longer object and circle the correct difference in length between the two objects.
Let’s look at our first two objects: a paperclip and an eraser. The paperclip starts at zero and goes to 2 centimeters, so we know our paperclip is 2 centimeters long. What about the eraser? If we look closely, we can see the eraser is 5 centimeters long.
Now we need to rearrange these numbers so the bigger number is on top. We’ll put 5 on top and subtract 2 from 5. What is 5 minus 2? Well, it’s 3. So, the difference in lengths is 3 centimeters. Now let’s fill in our worksheet. We know the eraser is bigger because it’s 5 centimeters long, which is bigger than 2 centimeters for sure. How much bigger is the eraser than the paperclip? When we subtracted the length of the paperclip from the length of the eraser, we got 3 centimeters. So, let’s circle 3.
Now, let’s take a look at our next two objects: a marker and a pen. Let’s see how long the marker is. It starts at zero and goes from 0 to 8 centimeters long, so our marker is 8 centimeters long. But what about the pen? The pen starts at zero and goes all the way to 12 centimeters.
What is the difference between the pen and the marker? Since the pen goes to 12 centimeters, we’ll put 12 on top and subtract 8. We can count up from 8 to 12 to find the difference. Let’s do that: 8, 9, 10, 11, 12. So, the difference is 4 centimeters.
Now let’s fill in our worksheet. Just by looking at the two objects and using the ruler, which object is bigger? Of course, the pen is bigger. Now, how much bigger or how much longer is the pen than the marker? We subtracted the shorter object from the longer object: 12 minus 8, and we got a difference of 4 centimeters. So, we know that our pen is 4 centimeters longer than our marker. Let’s circle 4 centimeters.
Remember, boys and girls, when you want to find the difference in length between two different objects, first measure both objects, then subtract the length of the shorter object from the length of the longer object. The difference in the lengths of these two objects will tell you how much bigger one object is than the other.
Thanks for watching, boys and girls! We’ll see you next time. Subscribe to our channel to stay updated on new videos, and find links to our apps in the comments below.
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This version maintains the educational content while removing any informal or repetitive phrases.
