Lesson video

Exploring tens and ones.

Hello everybody.

I'm Miss Sidhu and we are going to be doing some exciting math with me today.

Now in today's lesson, you will be counting tens and ones and exploring their place value.

You may need to get some pasta or some bead strings to help you to count.

Now let's get started! In today's lesson, we will be grouping in tens and ones, counting in tens and ones, an independent task, and end of lesson quiz to see everything that we have learned.

Now let's get started.

Today, you will need a pencil and a paper to write your answers down, and some pasta to help you to count.

You may use bead strings or other objects to help you to count such as LEGO or cubes or beads.

But let's begin this lesson by finding out how many ways can you make the number 12? So our special number today is 12.

So how many ways can you make the number 12? I want you to pause the video and find out how many ways you can make 12, so pause and freeze, macaroni cheese.

Here are some examples of what you could have found.

You may have some other numbers that you have found to make the number 12, so have a look at some of them.

So here we've got six and six, make 12.

You've got 10 and two make 12.

One and 11 make 12, or you might do 11 and one and swap the numbers of the parts around.

So have a check if you've got these, or you may have found some others.

In order for us to be able to count bigger numbers, we need to group things into tens.

So we don't need to count all the ones individually.

If we were to count everything in ones, it would take a such a long time.

Here, we have some pencils collected from a classroom that school.

How many do you think there are? I want you to shout out an estimate at the screen.

Remember an estimate is like a guess.

Can you shout out, just have a quick guess? Quick estimate.

Wow.

So many estimates.

I think some of you were super close.

Shall we find out? So we've got 10, 20, 21, 22, 23, 24, 25, 26, 27 pencils.

There are 27 pencils altogether.

There are two groups of 10.

Hmm.

I can't make another group of 10.

Why do you think I can't make another group of 10? Have a go explaining some thoughts to the person next to you.

That's right.

I can't make another group of 10 because I have seven loose pencils.

No, let's have a go at feeling in this table using our pasta.

If you wish, you may want to use LEGO or a different object to help you to count.

So along the side, the numbers on the table are the total amounts.

You need to find out how many groups of tens there will be and how many loose pieces there are left.

Now let's do the first one together.

So the number of pasta pieces we've got is the number 24.

We need to find out how many groups of 10 and how many loose pasta.

So with your pasta, you can count 24 pieces and then do one group of 10, two groups of 10.

And see if there might be three groups of 10.

I know with 24, I have two groups of 10 and I had four pieces leftover.

I had four loose pasta, my ones.

So I've got two groups of 10 and four ones.

Now I want you to complete the rest of the table for your independent task today.

So we've got the number of pasta pieces.

We've got 31.

How many groups of 10 and loose pasta, so the tens and ones.

36 and then 47.

So for your tasks today, you need to complete the table, by finding out how many groups of 10 there will be and how many loose pieces there are left.

You may want to use pasta, cubes and LEGO, any of the objects that you have at home or at school.

I want you to pause the video to complete your task and resume once you've finished.

How did you get on? So the number of pasta pieces for 24, so that's two groups of 10 and four loose pastas.

Two groups of 10 and four ones.

31, that's three groups of 10 and one loose pasta.

So three groups of 10 and one, one.

36.

We've got three groups of 10 and six loose pasta, so three groups of 10 and six ones.

47, four groups of 10 and seven loose pastas.

That's seven ones.

So four groups of 10 and seven ones.

Hope you had lots of fun in finding out all of the groups of 10 and the loose pasta.

Now, if you would like to share your work with Oak National, please ask your parent or carer to share your work on Twitter, Instagram, or Facebook, tagging @OakNational and #LearnwithOak.

Now I am super impressed by your counting in tens and ones today.

And now I want you to complete the quiz to see everything that you have learned.

And now that's already the end of the lesson.

Bye.