Video: Ordering Up to 6 Objects by Length

In this video, we will learn how to compare the lengths of 6 objects both directly and indirectly.

03:44

Video Transcript

Ordering up to Six Objects by Length

In this video, we will learn how to compare the lengths of objects and order them from longest to shortest or shortest to longest. If we look closely and compare the lengths, we can see that the snake at the top is the longest and the snake at the bottom is the shortest. Now that we’ve compared the lengths of the snakes, we can order the objects. We can order the snakes from shortest to longest. The shortest snake would go at the end of the line which is marked the shortest, and the longest snake goes at the end of the line marked longest. We could also order the snakes from longest to shortest.

Now let’s practice ordering some objects from longest to shortest and shortest to longest.

Order the lines from longest to shortest. The question tells us we need to order the lines from the longest to the shortest. We need to find the longest line. To do this, we need to compare the lengths of the lines. Now that we’ve compared the lengths using these dotted lines, we can see that line 𝑏 is the longest. Now we need to compare the lengths of lines π‘Ž, 𝑐, 𝑑, and 𝑒 to find the longest. Line π‘Ž is the longest of these lines. Now we can compare the lengths of lines 𝑐, 𝑑, and 𝑒. 𝑐 is the longest of these lines. Finally, we just need to compare the lengths of lines 𝑑 and 𝑒. 𝑑 is the longest of these two lines. That leaves us with line 𝑒, which means that line 𝑒 is the shortest. The order of the lines from longest to shortest is 𝑏, π‘Ž, 𝑐, 𝑑, 𝑒.

Let’s practice another example which asks us to order lines according to their lengths.

Order the lines from shortest to longest. In this question, we have to order the lines from shortest to longest. To find the shortest, we need to compare the lengths. Now it’s easy to see that line 𝑒 is the shortest. Now we need to compare lines π‘Ž, 𝑏, 𝑐, and 𝑑. Which of these is the shortest? It’s line 𝑑. Now we can compare the lengths of the remaining lines, lines π‘Ž, 𝑏, and 𝑐. π‘Ž is the shortest. Now we just have two lines left to compare, lines 𝑏 and 𝑐. Which of these is the shortest? It’s line 𝑐. This just leaves us with line 𝑏, which is the longest. So the order of the lines from shortest to longest is 𝑒, 𝑑, π‘Ž, 𝑐, 𝑏.

In this video, we’ve learnt how to compare the lengths of objects and order them according to length from shortest to longest or longest to shortest.

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