Ordering Objects by Length
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Basics on the topic Ordering Objects by Length
- Ordering Objects by Length
- Comparing Lengths
- Ordering Objects by Length – Example
- Ordering Objects by Length – Summary
- Frequently Asked Questions regarding Ordering Objects by Length
Ordering Objects by Length
When finding the length of an object, ask yourself 'how long is it?'. Finding the length of an object can help with sorting objects by length such as sorting objects from shortest to longest and sorting objects from longest to shortest. In this text you will find everything you need to know about comparing length and sorting objects by length.
If we need to order objects by length, first we need to compare the length of each object. Take a look at the pencils below. Each end of the pencil is lined up. Why is it important to line up one end when ordering objects by length? If the ends are all lined up, it makes it easy to compare and see with our eyes the different lengths of each one.
Ordering Objects by Length – Example
If we want to order the pencils from shortest to longest, start by asking ’which object is the shortest?. Since the ends are lined up, we can see that the blue pencil is the shortest so it is first. Next, the green pencil is longer than the blue pencil, but not as long as the red pencil so the green pencil is next. The red pencil is last, because it is the longest.
Ordering Objects by Length – Summary
If we want to order and compare objects by length, first find the length. When finding the length of an object, ask yourself 'how long is it?'. Finding the length of an object can help with sorting objects by length such as sorting objects from shortest to longest and sorting objects from longest to shortest.
We can order objects from longest to shortest and shortest to longest.
Have you practiced yet? On this website you can order objects by length and use other activities and exercises to practice.
Frequently Asked Questions regarding Ordering Objects by Length
When finding the length of an object, ask yourself 'how long is it?'. Length is measured in units such as inch, feet or centimeters.
Take a look at the different lengths. Line up the ends. If the ends are all lined up, it makes it easy to compare and see with our eyes the different lengths of each one.
If we want to order and compare objects by length, first find the length. Line up the ends and start with either the longest or the shortest one. Finally, you order the lengths from one end to the other.
Transcript Ordering Objects by Length
Zuri and Freddie are going to follow a recipe to make a magic potion. The recipe says they need a carrot, licorice, and a magic peacock feather... but they have to sort and add each ingredient in order based on their length or the recipe won't work. Let's practice "Ordering Objects by Length" to help Zuri and Freddie make their magic potion. When finding the length of an object, ask yourself 'how long is it?'. We can use length to measure an object, such as these building blocks... and we can use length to compare objects. Sometimes we need to compare and order objects based on their length. For example HERE is a blue pencil and a red pencil. What do you notice about the blue pencil compared to the red pencil? (...) The blue pencil is SHORTER than the red pencil. HERE is a green pencil (...) what do you notice about the green pencil compared to the blue pencil? (...) The green pencil is LONGER than the blue pencil. Now, let's look at all three pencils, and put them in order from SHORTEST to LONGEST. Which pencil is the SHORTEST? (...) The blue pencil is the SHORTEST (...) because the other pencils are longer, so this pencil is first. Which pencil is next? (...) The green pencil is next (...) because it is LONGER than the blue pencil, but it is SHORTER than the red pencil. Which pencil is the LONGEST? (...) The red pencil is the longest... because the other pencils are SHORTER, so this pencil is last. Now that we've practiced ordering objects by length... let's help Zuri and Freddie sort the ingredients for their magic potion. They have a carrot, licorice, and a magic peacock feather... and the recipe says to add them in order from SHORTEST to LONGEST. Which ingredient is the SHORTEST? (...) The licorice is the SHORTEST because the other ingredients are longer... so we can put it first. Which ingredient is LONGER than the licorice but SHORTER than the other one? (...) The carrot, because it is LONGER than the licorice, but it is not the LONGEST... so we put it second. Which ingredient is the LONGEST? (...) The magic peacock feather is the longest... because it is longer than the carrot and licorice, (...) so it is last. Now they are ready to add the ingredients! First Freddie adds the licorice... and Zuri adds the carrot... and finally (...) the magic peacock feather. Before we see how their potion turned out let's summarize. Remember (...) when finding the length of an object, ask yourself 'how long is it?'. Sometimes we need to compare and order objects based on their length. We can order objects from SHORTEST (...) to LONGEST... or from LONGEST (...) to SHORTEST. (...) "Oh wow! It's starting to bubble a lot!" "Look out!" "Did we just make a unicorn!?" "Okay, so we'll name it Bubbles and she can sleep on my bed and..." "Zuri! We can't possibly fit (...) oh never mind."
Ordering Objects by Length exercise
Which set of ingredients is in the correct order?Hints
Compare the item to the one below it, is it longer or shorter? If it is shorter, they can't be ordered correctly from shortest to longest.
Here we can see a correctly ordered set of crayons and an incorrectly ordered set.
Use this to help you find the correctly ordered ingredients.Solution
Here we can see the correct order of ingredients.
- The paperclip is the shortest so goes first.
- The daffodil is longer than the paperclip but shorter than the straw so goes second.
- The straw is the longest so goes third.
Can you order the ingredients?Hints
- 1 goes next to the shortest item.
- 2 goes next to the middle item.
- 3 goes next to the longest item.
If we were ordering these crayons we would:
- put 1 next to the yellow crayon because it is the shortest.
- put 2 next to the green crayon because it is longer than the yellow crayon but shorter than the blue crayon.
- put 3 next to the blue crayon because it is the longest.
- 1 goes next to the lipstick because it is the shortest.
- 2 goes next to the stick because it is longer than the lipstick but shorter than the paintbrush.
- 3 goes next to the paintbrush because it is the longest.
Can you compare the lengths of the items to the feather?Hints
Remember, you are comparing each item to the magic peacock feather.
For example, we would highlight the liquorice in violet because it is shorter than the feather.Solution
The items that should be highlighted in violet because they are shorter than the feather:
- lollipop stick
- hair clip
- base 10 rod
Can you sort these objects by length?Hints
Use the picture at the top to see each item next to each other.
Which item is the shortest? This one needs to come first.Solution
Here is the correct order.
Which item is the longest?Hints
Choose an item and compare it to the other ones, is it longer or shorter?
Can you find the shortest item? This is definitely not the one we are looking for.Solution
The ribbon is the longest item so will need to go in first.
Tall and short.Hints
Look at the flowers this way to help you see the tallest/longest and the shortest.
Once you have found the shortest and tallest, compare the flowers that are left to help you to order them.Solution
- The tallest flower is number 4.
- The shortest flower is number 3.
- From shortest to tallest, the correct order is 3, 2, 1, 4.
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Ordering Objects by Length
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Tools for Measuring Length
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Measuring in Inches
Comparing Lengths Using Standard Units
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Converting Inches and Feet
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Millimeters, Centimeters, Meters and Kilometers