### Video Transcript

Numbers up to 10 on a Number Line.

In this video, we will learn how to use number lines to model the counting sequence from zero to 10. This is a number line. It starts at zero and ends at number 10. And this is a jumping jellybean who’s going to help us learn how to count from zero to 10 on a number line. Did you remember that this number line starts at zero? So this is where we should start counting. We’re going to count from zero to 10. Zero, one, two, three, four, five, six, seven, eight, nine, 10.

Here’s another number line. All of the numbers are missing though. But the numbers have been represented by counters. The first number is shown using no counters. So we can write the number zero on the first digit card. Next, we can see one counter, two, three. Did you notice we’re adding one more counter each time? Four, five, six, seven, eight, nine, 10. The number of counters increased by one each time. If we count the numbers from left to right on a number line, the numbers increase. Zero, one, two, three, four, five, six, seven, eight, nine, 10.

We can use number lines for lots of things in maths. In this video, we’re going to use a number line to help us compare numbers. Let’s compare the numbers four and seven. The number four comes before number seven on the number line. Number seven comes after number four. And we know that if we start at zero and count from left to right on a number line, the numbers increase. They get larger. So we could say that four is less than seven or seven is greater than four. And we can see that seven counters are more than four counters. Seven is more than four. And four counters are less than seven counters.

If a number comes after another number on a number line, it means it’s greater. And if a number comes before another number on the number line, it means it’s less. Let’s practice using number lines to help us count and compare numbers.

Some numbers are missing from this number line. Zero, one, two, three, what, what, six, seven, eight, nine, 10. What number should be on the orange card? What number should be on the blue card?

In this question, we have to find the missing numbers from the number line. The first missing number should be on the orange card. And the second missing number should be on the blue card. Let’s use the number line to help. The number on the orange card comes after number three on the number line. Which number comes after number three?

We could draw three counters and then one more. We’ve drawn three counters. If we add one more, that will be four. One, two, three, four. The number on the orange card is number four, because four comes after three on the number line. The number on the blue card comes after number four. We have four blue counters. So now we need one more. Four and one more is five. The number that comes after number four is number five. Zero, one, two, three, four, five.

The number that should be on the orange card is number four. And the number that should be on the blue card is number five. The missing numbers are numbers four and five.

Which is less, one or four?

We’re being asked to use a number line to compare two numbers, the number one and the number four. Which of these two numbers is less? Number one comes before number four on the number line. One, two, three, four. When we count from left to right on the number line, the numbers increase. We start with the number with the least value at the beginning of the number line. And the value of the numbers increases. Four is worth more than one. One is worth less than four. One counter is less than four. The answer to the question “Which is less, one or four?” is one. One is less than four.

What is one more than six?

Here’s the number six on the number line. We have to find the number which is one more than six. When we count from left to right on a number line, the numbers increase. Zero, one, two, three, four, five, six, seven. The number which is one more than six is seven. Seven is after number six on the number line. The number which is one more than six is seven.

Which number line is correct?

Four, five, six, one, three, nine, seven, two, zero, eight, 10. Zero, one, two, three, four, five, six, seven, eight, nine, 10. Or zero, one, two, five, nine, three, four, eight, seven, six, 10. Which of these three number lines is correct?

Maybe you followed the numbers as you were listening to the question. Did one sound correct? We know the first number line is not correct. It begins with a number four and ends with a number 10. The second and third number lines both begin with a zero and both end with 10. Which of these is correct?

Let’s count. Zero, one, two, three, four, five, six, seven, eight, nine, 10. This number line is correct. Let’s check the third number line. Zero, one, two, three. Oh, it says number five. That’s not correct. The number line in the middle is correct. Zero, one, two, three, four, five, six, seven, eight, nine, 10.

What have we learned in this video? We’ve learned that we can count from zero to 10 on a number line. We can use number lines to help us compare numbers. And we can use a number line to find one more or one less than a number.