ClassX Video Lessons Youtube Channel ABC Mouse ???? Jessie Solving Word Problems | Math Video Lesson ????????
Hey there! Today, we’re going to learn about solving a word problem, just like a puzzle! Imagine you’re on a construction site with some friendly workers named Hank, Ralph, and Jesse. They’re trying to figure out how many steel beams were delivered to them. Let’s help them out!
Hank and Ralph were working hard, and they had 8 steel beams to start with. Then, a big crane came and dropped off some more beams. Now, they have a total of 19 beams. But, oh no! They forgot to count how many new beams the crane brought. Can you help them figure it out?
When we have more than we started with, we use addition. Let’s write a number sentence to help us solve the problem:
8 + ? = 19
The 8 is the number of beams they started with, and 19 is the total number of beams they have now. The ? is the number of beams the crane added. Let’s find out what that number is!
We can use something called a number family to help us. It’s like a little triangle that helps us see the numbers we need:
Now, let’s write out the number sentences that go with this number family:
Look at the last number sentence: 19 – 8 = ?. We can solve this by subtracting:
19 – 8 = 11
So, the missing number is 11. That means the crane delivered 11 beams!
Let’s make sure we got it right. If we add the beams they started with to the beams the crane delivered, we should get the total:
8 + 11 = 19
Yes! We did it! The answer is correct. Hank, Ralph, and Jesse can now finish their work with all the beams they need.
Thanks for helping solve the word problem! Remember, solving word problems is like being a detective. You just need to find the clues and put them together. Keep practicing, and you’ll become a word problem expert in no time!
Be a Detective at Home: Look around your house and find a situation where you can create your own word problem. For example, count how many apples are in the fruit bowl, then imagine you bought some more. How many apples do you have now? Write down your word problem and solve it using addition or subtraction, just like we did with the steel beams!
Build a Number Family: Use small objects like blocks or buttons to create your own number family triangle. Start with a total number of objects, then separate them into two groups. Write down the number sentences that match your number family. Can you find the missing number if you hide some of the objects?
Draw Your Own Story: Draw a picture of a scene where you need to solve a word problem. It could be at a park, in a kitchen, or even on a spaceship! Include characters and objects, and write a short story about what happens. Then, create a word problem from your story and solve it. Share your drawing and solution with a friend or family member!
Sure! Here’s a sanitized version of the transcript:
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Oh, what are you wearing, Hank?
My new swim trunks! Ralph makes me feel like I’m on the sandy beaches of Hawaii instead of working.
Got you a pair too, in green.
Uh, thanks!
Hi guys, my dad says you’re almost done.
Almost! We had eight steel beams before that last delivery, right Hank?
You know it, boss.
In that last delivery of beams, we got…
Oh, I didn’t get the number of beams that were just dropped in the bin, and I need that for my report. I only know that we have 19 in total.
That sounds like a word problem.
Sure, a word problem! Of course, and Ralph here knows all about word problems, don’t you, Ralph?
Me? Word problems? Maybe I can help!
Ah, that would be amazing! You’re a real lifesaver, Jesse.
So we know that you started with eight beams, and that crane just dropped some more in the bin, making it 19 beams altogether.
When you end up with more than you started with, that’s addition.
I’m going to write a number sentence since we know we’re supposed to add. Let’s start with this.
Now we need to figure out the missing numbers.
You started with eight beams, so let’s put the number eight in the first space.
The next thing we do is ask ourselves what else do we know?
Well, we also know there’s a total of 19 beams in the bin. Since it’s the total, that number goes after the equal sign.
Because we don’t know how many the crane added, we’ll put a question mark there.
That stands for the missing number. See, we’ve changed our word problem to a number sentence.
Now let’s solve it! One strategy for solving number sentences is to use a number family.
19 goes at the top because it’s the biggest number, eight goes in the bottom left corner, and a question mark goes in the bottom right corner.
Do we have to build that triangle?
If so, we’re going to need more beams.
Of course we don’t!
Nope, the triangle just helps us see the number family.
Now I’m going to write out the four facts that go with this number family.
Okay, eight plus question mark equals nineteen.
Question mark plus eight equals nineteen.
Nineteen minus question mark equals eight.
Nineteen minus eight equals question mark.
Hey, look at the last number sentence! What does it tell us?
Um, you have nice writing!
Thank you! But look, 19 minus 8…
We can solve that number sentence.
19 minus 8 equals eleven.
The missing number in our number family is eleven, and that means the crane delivered eleven beams.
You’re sure about that? Let’s check.
You started with eight beams this morning, and that crane just dropped some more in the bin for a total of 19 beams.
To check your answer, you put the missing number in the first number sentence. Does 8 plus 11 equal 19?
Yes! We have the right answer!
All right, thanks Jesse! Let’s get this job done, Hank!
Ready, guys?
Hey Dad, remember to take off your hard hat!
Nah, we’re good.
We don’t want to get our hair wet.
[Music]
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Let me know if you need any further modifications!
