Estimating! | Mini Math Movies | Scratch Garden - YouTube

Oh hi everybody! Today I am going  to talk to you about numbers,  

and counting, and estimating. And maybe  even bananas. Ho, I really like bananas.

OK, so one thing we use numbers for is when  we are counting. And sometimes when we are  

counting and especially when we have to  count something quickly, we use estimating.  

Estimating is kind of like guessing.  You all know what guessing is right?  

Let’s try: right now, I want you to guess what is  behind me. I will give you a hint. It is a fruit,  

and it is long, and yellow… can you  guess? That’s right, it’s a banana! Yay!  

Because you did such a good job, it is  now time for a break. OK that is enough!

So when we guess something that is about  numbers, we call it estimating. In a minute,  

I am going to show some more bananas, and you are  going to guess - or estimate - how many bananas  

there are. You already said that! But first, let  us make sure we all know the numbers from one to ten.  n

Let’s all count to ten out loud, together. OK  ready? Here. We. Go! One, two, three, four, five, six,  

seven, eight, nine, ten. Ho, good job! So, these  are all the numbers, or numerals, from one to ten.

And did you know that we can also show  numbers using bananas? Oh yes we can!  

For example, this is what two bananas look  like. This is what five bananas look like,  

and this is what ten bananas look like.  I will show you again. This is what two  

bananas look like: one, two. This is what five  bananas look like: one, two, three, four, five.  

And this is what ten bananas look like: one, two,  three, four, five, six, seven, eight, nine, ten.

So I am going to quickly show you some  different bananas, and I want you to  

estimate how many bananas you  think there are. And remember,  

because you are estimating - or guessing - it is  OK if you don’t know the exact number of bananas.  

Are you ready to see some bananas!  Of course you are. Yay! Here. We. Go.

OK, that was a pineapple, not a  banana. Who put that pineapple there?

I did. Sorry!

OK let’s try again. Ready? Here. We. Go.

So, what was your estimate of  how many bananas there were?  

Let’s count and find out. Bananas. I said  bananas! One, two, three bananas! Remember  

two bananas look like this, so if we add one more  we know that two plus one is three. Three Bananas!

OK, you did such a good job, let’s  take a quick break. OK that’s enough!

Now, let us do some estimating again with a  different number of bananas! Ready? Here. We. Go.

So, what was your estimate of how many bananas  there were? Let’s count and find out. One,  

two, three, four, five, six bananas. Remember that  five bananas look like this, so if we add one more  

we know that five plus one is six. Six bananas!  If you estimated that there were six bananas, good  

job! If you estimated there were five bananas,  also good job, because five is close to six.

Wanna know something? Of course you do! Six  bananas don’t always look exactly like this.  

They could look like this and there would still  be six. They could also look like this and there  

would still be six. They could also even all  have funny hats, and there would still be six!

OK, let us do some estimating one last time with a  different number of bananas! Ready? Here. We. Go.

So, what was your estimate of how many bananas  there were? Let’s count and find out. One,  

two, three, four, five, six, seven, eight bananas.  Remember that five bananas look like this,  

so if we add three more we know that  five plus three is eight. Eight bananas!  

But maybe you estimated a different number,  and that’s OK! For example, remember that  

bananas look like this. So if you take away two  bananas, we know that ten minus two is eight.  

Eight Bananas! If you estimated that  there were eight bananas, good job!  

If you estimated there were five or ten  bananas, also good job, because five  

is kind of close to eight, and ten is also close  to eight too. If you estimated that there were  

100 bajillion triple bananas, that is not so  good, because that is not even a real number.

OK, that is all the time we have today  for estimating. Don’t forget to subscribe  

to our channel for more laughing and learning  from Scratch Garden. And did you know that we  

have some other videos on counting, and even other  videos with bananas!? No it’s true! In fact,  

I estimate that you will soon watch one of  our banana videos very soon. OK bye for now!