Lesson video

Explore adding on hours and half hours.

Hello everybody.

It's Miss Sidhu here and this is my cat Mr. Cash.

We're going to be doing some wonderful math with you today.

In this lesson today you will be adding either one hour or half an hour on to a given time.

Now, let's get started.

Are you ready? Welcome to today's lesson.

In today's lesson we will be adding on half hours to a given time, adding on hours to a given time, an independent task and an end of lesson quiz to see that everything that we have remembered.

There are times in the video that you may need to pause and have a go at some of the activities yourself.

Now let's have a look at what we may need.

You will need a pencil and a paper to write down the answers, and a clock to help you work out the time.

You can make your own clock or you might have a clock around where you are.

Now, let's get started.

Oh, here we have a little brainteaser.

Have a look at the time on the clock faces.

What times are they showing? So what time do the clock faces read? I want you to pause the video and have a go reading these times.

Pause and freeze macaroni cheese.

How did you get on? Take a look at these clock faces and what times they are showing.

So the first one we've got four o'clock.

The next one we've got half past five.

The next one we've got six o'clock, and then we have half past seven.

Next, we've got nine o'clock.

And finally, half past eleven.

How did you do? Were you able to find out all the faces? Good job.

Here we've got a big picture of Little Red Riding Hood.

So here we have Little Red Riding Hood go for a walk to visit her grandma's house.

She first leaves her house at eight o'clock.

What time is in the next picture when she's walking through the marketplace? Great work.

The clock says half past eight, and then when she speaks to the woodcutter, the time says, can everyone say out loud.

Nine o'clock.

Well done.

And when the wolf is watching her walking through the woods the time is, ten o'clock.

And finally when she arrives at her grandma's house, it is half past ten.

All of these activities that Little Red Riding Hood has gone through has added time on from the first activity.

For your talk test today, using the big picture of Little Red Riding Hood, see if you can find two images where one hour has been added on the clock.

I want you to pause the video now to see which activities you can see where one hour has been added on.

For example, you might see something at seven o'clock and then an hour would be eight o'clock.

So pause the video, have a read, and then tell the person next to you.

How did you get on? Here we have two activities circled in pink.

One started at nine o'clock, and the other one started at ten o'clock.

That means, that from nine o'clock to ten o'clock, one hour has been added on.

There's also an eight o'clock, to nine o'clock.

That means one hour has been added on as well.

Good job.

Here we have two activities that Little Red Riding Hood did all morning.

What time does Little Red Riding Hood's watch say? To have a look a Little Red Riding Hood's watch, what time does it say? Ten o'clock.

Well done.

Now what time, when she, what is the time when she arrives at her grandma's house? Having a look at the clock.

Half past ten.

Super.

So that means it took Little Red Riding Hood half an hour to walk through the woods to get at her grandma's house.

So if we've if we've got ten o'clock, so I'm going to do ten o'clock on my clock, and it's taken her, half an hour to walk to grandma's house and now it is half past ten.

There we go.

That's half an hour that we've added on.

Oh, here we've got a word problem.

Let's have a look.

It says that Little Red Riding Hood needs to buy bread for her grandma.

She leaves her house at three o'clock and it takes her an hour or one hour to get her bread.

What time does she get home? So here we have the word problem where we need to add time on to a given time.

We know the time that was given was three o'clock and the activity takes one hour.

So what is one hour after three o'clock.

So one hour after ten o'clock would be 10 o'clock then 11 o'clock, but this time we've got three o'clock.

What is one hour after three o'clock? Great.

Can you tell me nice and loud? Super.

One hour after three o'clock is four o'clock.

Here we've got another problem.

Let's help Little Red Riding Hood.

So Little Red Riding Hood goes for a walk at half past ten.

She's out for half an hour.

What time does she get home? So here we need to add half an hour onto half past ten.

If we move the minute hand another half an hour, we land on, eleven o'clock.

The answer is eleven o'clock.

That's half an hour after half past ten.

For your independent task today, you would have to solve some word problems like we did before.

So the first word problem, Kate does her homework at four o'clock and it takes her one hour.

What time does she finish? Now let's look at the word problem for number two.

Tom makes some cookies.

He puts them in the oven at half past two.

They take an hour to cook.

What time are they cooked? So think about half past two, one hour to cook.

The third word problem, a cartoon starts at six o'clock.

It's on for one hour.

What time does it finish? I want you to have a go at these activities and solving all the word problems. So pause the video to complete your task and resume once you're finished.

Now let's look at the answers.

So Kate does her homework at four o'clock and it takes one hour.

What time does she finish? Five o'clock.

Tom makes some cookies.

He puts them in the oven at half past two.

They take an hour to cook.

What time are they cooked? Half past three.

A cartoon starts at six o'clock.

It's on for one hour.

What time does it finish? So seven o'clock.

How did you get on? Did you get them right? I would like you 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".

You did an amazing job today, and I hope you had lots and lots of fun.

Let's give ourselves a fantastic, good job.

Now I want you to complete the quiz to re=see everything that you have learnt.

Now, bye.