Measuring lengths using non-standard units
Length: Length can be defined as how long an object is from one end to the other.
We can measure length using:
- Non-standard units
- Standard units
Here we will learn about non-standard units.
What are the Non-standard units?
- Non-standard units are not typically used for measurements.
- It has no fixed margins.
- These units can vary from person to person or depend upon the shape and size of the object used for taking measurements.
Two spoons of tea powder are required to make one cup of tea. But if we take bigger spoon it required only one spoon of tea powder.
So, here spoon is the non-standard unit to measure the tea ingredient.
Non-standard units of Length
- There are two types of non-standard units of length-
- Bob finds that the length of the table is 8 handspans.
- Simmy finds that the length of the table is 11 handspans.
- Both are getting a different measurement of the length of the table.
- The objects that have different shape/size/length, for which we get different lengths of the same object are known as Non-uniform units.
- Some examples of non-standard non-uniform units are – handspan, foot, fingers, arm, etc.
- Both find that the length of the table is 6 sticks.
- Both are getting the same measurements because they used objects of the same size.
- Using the same object or same shape/size/length of objects for taking the measurement is known as Uniform units.
- Some examples of non-standard uniform units are – paper clips, rulers, sticks, straws, etc.