Lesson video

Hi, everybody.

I hope you're all well and ready for today's maths lesson.

Today, we're going to be measuring to the nearest centimetre and millimetre, but before we begin, put on your hats, , tighten those ties, , and tell the computer, "Now I'm a mathematician!" Great.

Let's get started.

So, here is today's lesson agenda.

First, we're going to do a quick Do Now, then we're going to do our Star Words.

We're then going to be looking at different lengths, or doing some measuring, and then it will be time for your quiz.

But before we get started, please make sure you have a pencil, piece of paper, ruler and different pieces of paper that are cut up into different sizes.

If you are doing the cutting, please make sure that you are careful.

Or even better, ask a guardian or carer to help you.

If you need to pause the video to get anything, please do so now.

Great! Let's get started.

What I need you to do now is to sort these tools for measurement into the correct columns.

We can see we have tools for length, but also tools for other types of measuring, such as for baking, when we measure weight.

Pause this video and sort out the tools.

Great job, everybody.

Here we have our different tools.

In our tools for other types of measuring, we have the weighing scales for baking, we have a clock for time, and we have a measuring jug for measuring liquids.

In our tools for length, we have a measuring tape and a ruler.

Here are our star words, oh I can't hear you! Star words! Millimetre, centimetre, accurate, estimate, about, roughly, a bit more than, a bit less than.

Remember, we need to use our star words throughout the lesson.

So, if you spot me not using them, please remember to give me up a whispered reminder through the screen.

How many ways could we explain the length of this blue strip? Well, if you have a look at this ruler, we can see that this blue strip is a little bit more than nine centimetres.

It's a little bit more, so it's roughly nine centimetres, and it's less than nine and a half centimetres.

How about this one? This one, we can say the strip is a little bit less than 14 centimetres, but it's a little bit more than 13 centimetres.

So, for your tasks today, you are going to be doing some measuring, and let me show you what that looks like.

Now, here we have strip B, and I'm going to use my ruler to measure the length of strip B.

So remember, we need to make sure it's really closely aligned to the start of the ruler.

Now, I can see that my piece of paper is just under three and a half centimetres.

So, it's roughly three and a half centimetres.

It's a bit more than three centimetres, and it's a bit less than four centimetres.

This is what you're going to do with each piece of paper strip that you have.

Great job, everybody.

So, let's move on to our independent task.

So today, you are going to be drawing some lines and doing some measuring.

So, using your rulers, you're first going to draw, drawing a line with the length of five centimetres and five millimetres.

Remember to carefully line up your ruler, and go for five centimetres and five millimetres.

And the second line is eight centimetres and three millimetres long.

And your third line is 10 centimetres and seven millimetres long.

You're then going to do some measuring.

So, please get an adult to either print out this page for you, or draw different length lines, and you need to measure the length of line A in mixed units, line B in mixed units, and line C in mixed units.

Don't forget to pause this video.

Well done everyone today.

I hope you enjoyed doing some measuring and using centimetres and millimetres.

If you'd like to share your work, please ask your parent or carer to share your work on Instagram, Facebook or Twitter, tagging @OakNational and #LearnwithOak.

But before you go anywhere, it's time to do the quiz.

Good luck and see you again soon.