Reading and ordering time (presented in different ways)

Key Stage 2

Maths

Time

﻿Hello, my name is Mrs Behan. In this lesson, I will be your teacher. We're going to have a look at time. We will read time on an analogue clock and a digital clock. And we'll also look at time when it is in the written format. So if you're ready, I'm ready. Let's begin. Let's start by taking a look at the lesson agenda. We will begin by reading time in different ways. Then we will compare analogue and digital clocks. After that we will practise matching time on different clocks. And at the end of the lesson, there will be an independent task for you to have a go at. I know you'll be keen to find out how you got on, so I will make sure I go through the answers with you. There are just two things that you will need to take part in this lesson, something to write with. So a pencil or a pen, and something to write on. If you don't have those things to hand, just pause the video here whilst you go and get them. Remember to try and work somewhere quiet where you won't be disturbed. I know you already know lots about time and different types of clocks, but let's just have a little reminder on the two different types of clocks that you know. Here we have an analogue clock and an analogue clock has two scales on it. One scale shows us the number of hours that have passed. And the other scale is outer one here shows us the number of minutes that have passed. And we can see all of the time on an analogue clock. Here is a digital clock. We can't see all of the hours on here. We can just see the current hour and the current minutes. So which one, which digits mean what? Well, these first two digits tell us the hours. And the second two digits tell us the number of minutes. And we notice as well that we use a colon between digital time. Okay, now that we've had a look at that, you are ready to play my first game. So our first game is thumbs up, thumbs down. I'm going to show you two clocks. There will be a picture of a digital clock and a picture of an analogue clock. There might even be some written times in there. And all you're going to do is when I say three, two, one, show me, you'll show me a thumbs up if the times match. If the times don't match, you will show me thumbs down. So we're looking at two different ways of representing time, an analogue and a digital time. If they match, what are you going to do? That's right, thumbs up. And if they don't match, you'll put your thumbs down. So let's try this first one. Oh, there's an example. That's a thumbs up. And if they don't match thumbs down. Okay. Then here's the first example. Look at the two clocks. Do they show the same time? Three, two, one, and show me. They don't show the same time. Do they? One shows 3:15 or quarter past three. And the other one is showing us 14 minutes to 11. So they do not show the same time. Okay then have a look at these two, 23 minutes past seven. Do the times match three, two, one, and show me. Yes. The times are the same. Okay. 21 minutes to five. Do the clocks match? Three, two, one and show me. No the times do not match. This one over here shows us 23 minutes past which hour? Past seven. It's obvious the hour hand is on his way to eight, but hasn't got there yet. The 23 minutes past seven. I will just tell you now, if you think we're going too fast, you can pause the video at any point. When you see the clocks and the times on screen, just to give yourself a little bit more time to think, then when you're ready, press play again and join in. Let's look at the next clock. 12 minutes past nine. Do these show the same time? Three, two, one, and show me. They do not show the same time. And this could be a little bit tricky. So we've got to remember that this is our hours. These two digits here represent the hours that have passed. And these two digits here represents the minutes that have passed. So how many minutes have passed? Nine minutes have passed and which hour? 12. So the time on this display here is actually nine minutes past 12. Let's try another one. Do the clocks match? Three, two, one and show me. Yes. These two clocks do show the same time. What about these two? Three, two, one. And show me. Yes. These two clocks, all show also show the same time. The hour is three. So it's past three o'clock by four minutes. Our minute hand here is at four minutes past, and then the hour is at three. So it's four minutes past three. You're doing really, really well. So there are different ways that we can say the time that we see on a digital clock. Here is a digital clock. You tell me the time. Did you say 17 minutes past four? If you did great job. The time shows us 17 minutes past four. And we can say that, we can say how many minutes past the hour. When reading digital time, we can also say 4:17. We can say the number of hours first. You try it 4:17. Have a look at this clock. What is the time on this clock? Tell me how many minutes past, 27 minutes past seven. Now say the other way, tell me the hours first. Did you say 7:27? Tell me the time on this clock. Tell me the hours first. That's right. 8:43. And this one, the time is? That's right, 8:57. What time does this clock show? Well this clock shows 11:30 or half past 11. Look carefully as it changes. What time is it now? Is 11:31. How much time has passed? I know I went quickly, so it's not actually passed, but the display shows us that one minute has passed. Read the time. 11:32. So another minute has passed. We're going to fast forward now. Forwarding time to 11:59. Now just remind me how many minutes are there in one hour? That's right. There are 60 minutes in an hour. So what is going to happen on this display? After one more minute the time will be, will it be 11:00? Will it be 12:00? Will it be 11:60? What do you think it will be? Let's have a look. The new time one minute later than 11:59 is 12 o'clock. So you can see how the times change. Let me go back again. So 11:59 changes to 12 o'clock. So when hour hand changes at the hour digit display it. So the hour digit changes and both minute digits change as well. So, because we have started a new hour, our minutes will start counting from one again. So let's take a look now at what the analogue clock could be showing at 11:59. Here it is. We can see that there is one minute left to go until 12 o'clock. So one minute later, the analogue clock has both hands, both indicators at the top of the clock. On the digital display, we have 12:00. So all of the digits apart from this one has changed. Whilst we're thinking about 12 o'clock, I just want you to have a little think. What other ways can we talk about 12 o'clock? Well we might say mid day. In the middle of the day so around lunchtime, that would be 12 o'clock. We might also call it noon, 12 noon. And we all know when we say noon it's the middle of the day. Twelve o'clock could also be at midnight. So in the middle of the night, probably when we're all in bed, we should be in bed. So how do I know that this 12 on the screen means morning or afternoon? How do I know that it means midnight or midday? Have a little think. Is there something that we can add on to the end of this digital display perhaps? Well, what we're missing is the a.m and p.m a.m means before midday, antemeridian, p.m means postmeridian which means after midday. So this will help us understand whether it is the midnight or midday. So here we have our clocks again, and we know that if this clock here says a.m so 11:59 a.m, one minute later, it will be 12:00 p.m. This is lunchtime because as soon as that clock moves past 12, we're forward into the next hour. So we're now into postmeridian or the afternoon. So let's practise matching digital clock with an analogue clock. You're just going to need your finger here, no paper or pencils or anything, but I want you to draw an invisible line on your screen, using your finger from the digital clock to the analogue clock. Pause here whilst you have a go or when you're ready come back and we will go through the answers together. Well done. Now that you've had a go matching up those times, let's have a look together. So the first clock, 10:57 matches with this analogue clock here, we can see, there are three minutes left to go until it is 11 o'clock. 6:45 which clock did you choose for this second one? Here it is. It's the first analogue clock on your screen. It's showing quarter to seven or 6:45. What about 12:42? There's two clocks left to choose that's right. It's the last clock on the screen. 12:42 matches up to this one over here. Which means this clock. The second analogue clock shows us 7:57. How many minutes is it to the next hour? Well, we can see on the analogue clock, that is nine minutes to eight. Now that you know lots about time. Let's see if we can help out Michael and Zara. Michael and Zara were looking at time. And their challenge was to see which clock showed the later time. This is what Michael said. We can't say which time is later, but Zara said five past eight is later than 24 minutes to three. What do you think? So the children were asked to decide which clock showed the later time. Well, actually Michael is correct. We can't say which time is later. The two clocks don't show us enough information. We don't know whether the clock on the left shows the morning or the afternoon. Same with the clock on the right in the screen. So we need to use a.m and p.m. And that will help us decide which one shows the later time. Let's have a look at some digital clocks. Here are two digital clocks, 5:12 and 6:45. Which of these times is the later? Well, we can actually compare these. And we know that 6:45 is later than 5:12. We only really need to look at the hours on here. We know that six is later than five in the day. So because we have p.m on this side of the digital times, that's how we can work out and we can compare these times. So now we've worked out that 6:45 is later than 5:12, just because p.m was on there. You now know everything you need to be able to have a go at the independent task. Look at each set. Number the boxes underneath each clock to order from earliest to latest. So look at the first set. If you think that 10:57 is the earliest time, label it with a number one and then work up from there. Remember to use a.m and p.m to help you work it out. Pause the video here to complete your task. Once you ready come back to me and we will go through the answers together. Okay then let's see how you got time. So let's take this first set up here. Which one did you think showed the earliest time? It was in fact 10:57. So this is three minutes to 11 in the morning. The next time is 6:45 postmeridian. So it's after midday, but 11:20 is later than 6:45. So that one is labelled with a number three. Let's take this set on the right now. So which one shows the earliest time? That's right. 7:04 a.m is the earliest time in that set. We know this is before mid day. It is antemeridian. The next time is 5 to 12 in the morning. We are still in the morning. We've not passed midday yet, but 5:12 is in the afternoon. We can see that the clock shows p.m. So it is after midday. Let's look at the set on the bottom left. We have all analogue clocks here, but you can still see it shows a.m on the clocks. Quarter past four is the first time, quarter to six is later. And the latest time of that set is 25 to 11. So which is the earliest time in our last set? The earliest time is 10 past five. And we know that this is the earliest time because the clock shows a.m. Then 10 to 6 in the morning is the next time in order followed by five minutes past 10 still in the a.m. If you'd like to please ask your parents or carer to share your work on Instagram, Facebook, or Twitter, tagging @OakNational, @LauraBehan21 and #LearnwithOak. Is quite tricky learning to tell the time, but you've smashed it. Well done. Keep practising whilst you are at home. See you again soon. Bye bye.

Reading and ordering time (presented in different ways)

Reading and ordering time (presented in different ways)

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UnitMaths / Time

Maths