(soft music) - [Kids] Math Mights.

- Welcome, first grade Math Mights.

I'm Mrs. Markavich, and I'm so excited that you're here with me today.

I have so many fun math activities planned for us.

Speaking of math activities, let's check out our plan for the day.

Today, we'll be doing a mystery math mistake, and ways to make 10.

Let's warm up our math brain with a mystery math mistake.

Oh no, all of our Math Mights have gotten their strategies all mixed up.

DC is holding Abracus' wand.

What is going on here?

Okay, here's how our mystery math mistake is going to work.

One of our Math Might characters is featuring a problem that they're struggling with.

It's your job to help them find the mistake, and solve it with the correct answer.

Let's see who's going to need our help today.

It looks like DC needs our help.

He has some number bonds here, and he's having a hard time decomposing the number eight.

Do you see some of the errors that he has?

Let's see what our friends think.

Jameson says, I know that five and two make seven, not eight, I think it should be five and three.

Let's take a closer look at what Jameson has to say.

I'm going to go ahead, and build that number bond right over here the way that DC decomposed it.

We know that the whole number was eight, and he had five and two.

Jameson says, no, I think it should be five and three.

So let's go ahead, and build it on our 10 frame, and see if Jameson is correct.

We're going to start with the first part, five, because Jameson said five.

One, two, three, four, five.

Now, DC said there were two, but that made seven.

Jameson said, I think we need three.

So I'm going to put one more there.

Now, when you look at it, you can see five and three make eight.

And I know that you're great at subitizing.

So when you look at it, you automatically know that this is eight.

Great work, Jameson.

I know that DC would be so happy that we were able to help, but I think there were a few more number bonds he needs help with.

Let's see what Josiah has to say.

Josiah says, I know six and one makes seven, not eight.

I think DC meant for it to be two and six, which equals eight.

We're going to change the two parts.

DC had a six and a one as the two parts in his number bond.

So if we were to build that, we would show six.

One, two, three, four, five, and six.

And then DC had a one there.

So if we look at it, we know, hm, that doesn't seem to look right.

And Josiah said it needs to be two.

So I'm going to put one more counter here, and see.

I've got five, six, and then two more, seven, eight.

So I definitely think that Josiah is correct.

I think we're going to change this one, and make it a two, so that we can see the two parts, six and two, make eight.

This was a great discovery to help DC.

We know we're becoming mathematicians when we can find errors in math, and solve them correctly.

Let's check out our I Can statement of the day.

It says I can find ways to make 10.

Take a look at this slide, what do you notice?

What do you wonder?

Well, I notice that all of the 10 frames are filled in differently.

Let's see what the boys are noticing.

Jameson says each 10 frame is filled with red and yellow counters.

And Josiah is noticing all the 10 frames total 10.

Well, I happen to have a large blown up picture of the 10 frames.

Let's talk about their notices.

Jameson said that all of the 10 frames are filled with red and yellow counters.

And we can see that for each of them.

Red and yellow, in B, there are red and yellow, same thing for C, red and yellow, and the same thing for D. And then Josiah is noticing that all of the 10 frames are filled.

I think that's because Josiah is such a great subitizer that when he looked at it, he was able to say, each of the 10 frames have 10 inside of it.

These are great mathematical notices.

Now let's talk about their wonders.

Jameson is wondering what is the number bond for each 10 frame?

And Josiah is wondering, are there more combinations to 10 that we can make with the 10 frames?

These are great wonders.

And the first wonder that we're going to look at is Jameson's.

We are going to make a number bond for each of the 10 frames.

Let's do that now.

We're going to start with our first 10 frame right here.

I'll label it with A, just so you know.

Now we know that our whole number is going to be 10.

And then we're going to take a closer look at our parts to fill in our number bond.

When we look at this, we can see that there are one, two, three, four, five, six, seven red counters for this part of the number bond.

And one, two, three left.

So we know that seven and three make 10.

Now, when I do the rest of our number bonds, I'm not going to count each one of them, because we've practiced a lot on subitizing.

We're just going to look at the counters, and say what the two parts are, as we fill in our number bond.

Let's go to letter B, and solve that one.

I'll put a B here.

We know that our whole number is 10 for all of our number bonds.

Now, when I look at this, I can see that the red part totals five, and the yellow part totals five, and five and five make 10.

Let's keep cruising, and go on to letter C. Again, I'm going to make the 10, and my two parts.

This time when I look at it, I can see there are four red counters, and six yellow counters.

So I know that four and six make 10.

We have one more that we need to do.

Letter D. I'll put 10 in here, make my two parts.

And when I look at it, I automatically know there are eight red counters, and two yellow counters.

And eight and two make 10.

This was great that you were able to look at the 10 frames, and put the counters by their colors into the number bond.

Now, Josiah's wonder, we're going to talk about that more in our show today, about the different ways that we can make combinations to 10.

Let's play a fun game called 10 frame shake.

Here's how it works.

You're going to need two sided counters like mine.

Remember if you don't have two sided counters, you could always use coins, and use the heads and the tails.

Then you're going to need a 10 frame.

If you don't have a 10 frame, you can always draw one on paper.

Next, you need the recording sheet, and then you need a red and yellow crayon.

Now, if you don't have a red and yellow crayon, you could use any two colors of crayons that you have.

We're going to be using that to fill in our recording sheet.

Let's get started.

All right, let's give our cup a shake, shake, shake, we'll spill those counters out, and then we will put them into our 10 frame.

I'm gonna start with the red, just because they're closest to me.

So I think you can kind of start to see how many red we have.

Then I'm going to plug in my yellow.

Now, the next thing I want to do is go over to my recording sheet, and I'm going to color eight spaces red, because I know that you subitized, and you automatically knew that there were eight there.

So we'll color in quickly eight spaces red.

One, two, and our recording sheet looks exactly like our 10 frame.

Three, four, five, six, seven, and eight.

Then when I look at this, I have two yellow.

So I'm going to use my yellow marker, and color in the last two yellow like this.

Now, the next thing that I can do is go over to my expression or equation, and fill in the red part and the yellow part.

So I'm going to put an eight.

They put the plus sign there for me.

Two equals 10.

Now the last step is for me to fill in our number bond.

So I know that the two parts are eight and two.

And when I look back, I know that the whole number is 10.

This is fun.

Let's try it again.

I'm going to put all of my counters back inside of my cup, just like this.

We're going to give it a shake, shake, shake.

We're going to spill them out, and then put them into our 10 frame.

I'll start with the red again.

I'm gonna slide those yellow out.

I've got one, two, three, four, five, six red.

And I know that you already know that four more would get us to 10.

So now we're going to head over to our recording sheet, where we're going to color in our two parts.

We'll start with our red part, which is one, two, three, four, five, and six.

Now we don't want our yellow part to feel left out, so we're gonna plug those four yellow in.

One, two, three, and four.

Now we want to put those numbers into our equation.

So we're going to put in the six and the four, and then we'll finish up with our number bond.

So we'll do six and four.

This time we can put our whole number in first.

We know the whole number was 10, and the two parts are six and four.

Now you could continue to play until you've filled in all of the 10 frames, the equations, and the number bonds.

We are doing such a great job at this, Math Mights, that I think we could continue practicing combinations to 10.

But this time using the counting buddy senior.

Let's make 10 with the counting buddy.

Here's what you're going to need.

I have everything in front of me.

You're going to need the recording sheet that has the circles that look like the counting buddy senior, and the part that has the equations, a dice, and your counting buddy senior.

Now this time with the counting buddy senior, what I'm going to do is drag all of the yellow beads to his feet like this, because what we're going to be doing is rolling the dice, and then pulling the number that we get on the dice to the center, and then we'll count on, and move those orange beads to the center, so we can see are two parts of 10.

So let's get started now.

I'm gonna start by rolling our dice.

I rolled a three, so I'm going to pull one, two, three beads to the center.

Now I'm going to keep counting, and as I count, I'm going to pull a bead over, and I'm going to stop when I get to 10, and then we'll count that part.

Let's do it together.

I've got three, four, five, six, seven, eight, nine, 10.

Now you can visually see my two parts of 10.

I have three yellow, and I have one, two, three, four, five, six, seven orange.

So now I can go up to my recording sheet, and match what I have on my counting buddy senior to the recording sheet.

So I'll start with three yellow.

One, two, three.

And then I'm going to color seven orange.

One, two, three, four, five, six, and seven.

My next step is to take that information, and put it into my equation.

This time you can see that the 10 and the equal sign are on the other side of the equation.

And that's okay.

Now we're going to add in three and seven.

That's a combination to 10.

You can keep playing to see how many combinations to 10 you could make until your recording sheet is filled.

Now, it's your turn to play 10 frame shake.

First-grade Math Mights, I had so much fun with you today.

Today, we were able to do a mystery math mistake, and find combinations of 10.

Until I see you next time, kiss your brain.

(soft music) - [Kid] Sis4teachers.org.

- [Girl] Changing the way you think about math.

- [Narrator] The Michigan Learning Channel is made possible with funding from the Michigan Department of Education, the state of Michigan, and by viewers like you.