ClassX Video Lessons Grade Grade 1 Fact Family Triangles – Addition and Subtraction Cartoon | Math for 1st Grade
Hello, friends! It’s chilly outside, and I’m all bundled up in my warm hood and fluffy mittens. Today, we’re going on an exciting adventure—a dog sled race! But first, we need to get ready, and we’ll learn about something called fact families along the way. Fact families are like little math helpers that show us how addition and subtraction are connected.
Let’s start with a simple fact family. I have three ropes: two ropes for the dogs and one rope for the sled. If we add them up, two plus one equals three. And if we switch them around, one plus two is still three. Now, let’s see how subtraction works. If I take one rope away from the three, I’m left with two. And if I take two ropes away, I’m left with one. That’s a fact family!
Here are our sled dogs, ready for a treat! I have some yummy fresh fish for them. There are five dogs in total: three on one side and two on the other. If we add them up, three plus two equals five. And if we switch them, two plus three is still five. Now, let’s give two dogs a treat. How many dogs still need a treat? Five minus two equals three. And if we give three dogs a treat, five minus three equals two. That’s another fact family!
Look at those beautiful birds! They can help us with another fact family. Three plus four equals seven, and four plus three is also seven. If we take away four, seven minus four equals three. And if we take away three, seven minus three equals four. Great job!
Now, let’s look at the cute baby seals! Six plus two equals eight, and two plus six equals eight. If we take away two, eight minus two equals six. And if we take away six, eight minus six equals two. Fantastic!
Now that we know about fact families, we’re all set for the sled race. “Mush!” That’s how we say “let’s go” in dog sled language. Thanks for learning with us today. See you next time!
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Fact Family Hunt: Go on a fact family hunt around your home or classroom! Find objects that can be grouped into fact families. For example, gather three apples and two oranges. Ask yourself: How many fruits do I have in total? What if I take away the apples? How many are left? Try to create different fact families with toys, books, or even socks!
Fact Family Art: Create a fact family house! Draw a house with three rooms. In each room, write one of the addition or subtraction sentences from a fact family. For example, if your fact family is 3, 2, and 5, one room could have “3 + 2 = 5,” another “2 + 3 = 5,” and the last room “5 – 3 = 2.” Decorate your house with colors and stickers to make it fun!
Story Time with Fact Families: Make up a short story using a fact family. For example, imagine you have 4 red balloons and 3 blue balloons. How many balloons do you have in total? What happens if 3 balloons fly away? Share your story with a friend or family member and see if they can guess the fact family!
Sure! Here’s a sanitized version of the YouTube transcript:
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[Music]
Hello everyone! It is cold up here, and I’m glad that I have my nice warm hood and fluffy mittens. [Music]
Today, we’re going to participate in a dog sled race, so we need to prepare for it properly. During the preparations, we will look for fact families. Fact families help us with both addition and subtraction. I will show you one of the most basic fact families. [Music]
I have three ropes: two ropes for the dogs and one rope for the sled. Let’s see—two plus one is three, and one plus two is three. I can keep this rope in my pack, so three minus one equals two, and three minus two equals one. Now I have one rope in my pack and two for the dogs. That’s a fact family!
Here are our sled dogs. Before we go for a sled ride, I’m going to give them a treat. Look what I got for them—fresh fish! There are five sled dogs: three dogs on this side and two dogs on the other. Three plus two is five, and two plus three is also five. Let’s unleash two dogs so they can come and get a treat. So far, I’ve given two dogs a treat. How many more dogs need a treat? Five minus two is three, that’s right! [Music] And five minus three gives us two. That’s the whole fact family!
Finally, the dogs are ready for the sled ride. Let me show you some more fact families. [Music]
Look at those lovely birds! Do you recognize a fact family? Three plus four is seven. [Music] And four plus three is seven. So seven minus four is three, and seven minus three is four. Perfect!
Look at those cute baby seals! Six plus two equals eight, and two plus six equals eight. So eight minus two equals six, that’s right! And eight minus six equals two. Wonderful!
Now it’s time to go. Fact families help us get ready for the sled race today. “Mush!” That means let’s go in dog sled language. See you next time! [Music]
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