Lesson video

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Hi friends, it's Miss Moinar here and are you ready to do some super fun math learning today? Oh, I'm sure you are and I brought along one of my friends, Harold the hedgehog, to help us.

Now, today we are going to be estimating, that means making a good guess about the length of some objects and we're going to compare them and measure them.

So, let's see what you're going to need to get ready for this lesson.

OK, Harold what are we going to need for today's lesson? You are going to need some paper, doesn't matter what it looks like, you're just going to need some paper that you're able to put into strips.

Now, in order to cut the paper into strips, you will need some scissors.

So, it's really important that you get a parent or carer to use the scissors and help cut the paper for you.

All right, pause the video, go get what you need and we'll come back together to get started.

All right, so I've got a strip of paper here.

The first thing I'm going to do, is I'm going to cut my strip of paper into four different lengths, OK? So, I'm going to do that now, I'm going to cut them and I'm going to create about four lengths of paper.

All right, so I've got these ones here.

All right, so I've got my four lengths of paper, could you describe the different lengths for me? How might you describe this piece of paper? You might have said you think that's the longest strip of paper.

How would you describe this piece of paper? You might have said that is the shortest bit of paper, well done.

All right, do you think you could help me put the pieces of paper in order? So, lets put them in order from shortest to longest, which one did we say was our shortest one again? Point to it on the screen.

That's right, this ones our shortest one, so I'm going to move it over here to be our shortest one.

All right, now we've got these three pieces left.

Which one do you think is the next shortest? Hmm, I'm having a tricky time figuring out if this ones shorter or this ones shorter.

What do you think I could do to find out for sure which one is shorter? Well, if I put them close together, I can compare them.

So, if I line them up directly, there.

It's easier for me to see which one is actually shorter.

Which one is the shorter one, the one above or the one below? If you said the one above, well done! I can see that's just a tad bit shorter, so I'm going to place that one next.

And then what would be our next shortest one? That's right, this strip here.

And then finally, we've got the longest one at the end.

So, we've put them in order, for our strips of paper, from shortest to longest.

All right, I'm going to take this piece of paper this time and I want to cut it in two pieces, but I want to make sure that when I cut it, that the lengths are different sizes.

So, I want to make sure that one piece is shorter than the other one and the other piece is longer.

How would I do that when I cut it with my scissors? What do I need to make sure I do? Well, if you said I need to make sure I take my scissors and I cut it in a place that I know for sure will make one part smaller and one part longer.

If I do it in the middle, that's going to be really tricky to figure that out.

So, I'm going to cut it, so I know that one piece is going to be closer to the edge, so it's going to be shorter.

And so I just cut it and now I can see that I've made two pieces.

I've cut two pieces and this one is much shorter than the other one.

What would I do if I want to cut this strip of paper now into two pieces, but I want them to be the same size.

What do you think I should do? Where am I going to cut it this time? Well, you're right, I wouldn't want to cut it close to the edge, 'cause I know if I cut it close to the edge I'm going to get a really small piece and a really long piece.

So, a trick that you might want to do is you can try and fold your piece of paper strip in half.

And that way I know when I open it up I know that both sides are going to be about the same.

So, I'm going to cut it about in the middle, to make sure my strips of paper come out about the same size or the same length.

All right, for your talk task, this is where you're really going to need a parent or carers help, OK? Because some cutting is involved, so they're going to need to use the scissors for you.

So, when you want them to cut somewhere, you can point to where you want them to cut with the scissors and then they can cut it for you, OK? So, what you're going to need first, is you're going to need three strips of paper, OK? So, any type of paper, but you need to have three of them and I would say they need to be about the same size first.

OK, so I've got three strips of paper.

The first thing you're going to do is you're going to take one strip of paper and you're going to cut it somewhere, so you know you're going to get two different sizes of paper, OK? So, how are you going to know where to cut to ensure that you've got two different sizes of paper where you cut.

So, you're going to point to where you want your adult to cut the first piece, OK? So, then you have two pieces that you've cut there.

Then, you're going to take your second piece and you're going to put the scissors somewhere else again to make a cut, so you can have two different lengths again.

So, maybe you're going to go from the other side, maybe you're going to do even smaller or bigger, but it needs to be two different lengths again and again, you're going to point where you want it to be cut and then your parent or carer is going to cut it for you, OK? So, after you've done that, you should have four pieces of paper that are different sizes.

Then, for your third piece of paper, you want the two pieces to be the same length.

So, where are you going to ask your parent or carer to cut it, so you know that both pieces will be the same? All right, after you cut them, we just want you to take a look at all of them, they are out in front of you and just think about, make an estimate, which strip do you think is going to be the longest? And you can say it out loud and why.

Which strip do you think is going to be the shortest? And you can say it out loud and why.

And, maybe you can find some strips of paper that you think are going to be about the same and why, OK? So, you're not going to order them yet, you're just going to make some guesses or estimating.

OK, pause the video, have a go at that and then we'll come back together.

All right everyone, how did that go? Were you able to get your parent or carer to help you cut your strips of paper into different pieces? Did you figure out with your estimating which one you thought was going to be the smallest? What about with the largest? All right, well, those estimating skills are going to come in handy, because now, we are going to do our main task.

All right, for your main task, you guessed it, we need to now put all of those strips of paper in order, from shortest to longest, or you might want to try from longest to shortest, OK? So, what you're going to need to do is to take two of your pieces, when you get a similar size, you might need to take them and compare them in length, putting them next to each other to really see, which one is going to be longer or shorter, OK? You might want to say out loud as you go, this piece of paper will be longer than this one because, I know I made the cut closer to the edge and I know that it's going to be a longer piece, or when I compared them I could see that this one was a little bit longer, OK? So, we want you to pause the video and have a go at putting all your strips of paper in order from shortest to longest, and then we'll be back together.

All right how did it go? Oh.

Well, it seems that Harold has had a little bit of fun ordering his strips of paper as well.

Well, what I was going to say is, how did it go ordering your pieces of paper? Were you able to compare them to find out which ones the shortest, which was the longest and then put them in order? Well that's great! Well, we're sure that you've had some amazing learning today and perhaps a parent or carer has taken some photos of your learning.

I'm sure your teacher would love to see the great learning you've been doing.

And, of course, Harold and I would love to see any of the learning you've been up to today.

So, you could ask your parent or carer, if you'd like, to share it with us on Oak on our social media.

All right, well that's all we have time for today I'm afraid and clearly Miss Moinar needs to go clean up all this paper after Harold.

All right, well, we hope to see you again everyone, Bye.