MEASUREMENT

Back to: Mathematics Primary 2

HELLO CHILDREN, WELCOME BACK TO CLASS

 

SUBTOPIC: LENGTH

Length can be defined as the distance between two points. Length measures how long or short a distance or an object is.

Measuring Length with Natural Unit

In the olden days, length is measured using body parts. This can be called natural units. A unit of measurement is a chosen and acceptable standard for measuring a thing.

 

Natural units are:

1. Hand Span: this is the distance between the tip of the thumb and the little finger.

      

 

Foot Span: the measurement taken by the foot by counting how many times the object covers your foot.

 

              

Arm Span:

     

                       

Cubit: This is the length from the elbow to the tip of the finger.

Stride:

ACTIVITY

• Using any of the natural units mentioned above, measure the following

1. i) one of the walls of your bedroom or classroom
2. ii) Your reading or dining table

iii) Your notebook

 

Importance of Length and Measurement

1. Measurement is important to scientists as it helps them to be accurate.
2. Measurement is used by farmers, by engineers in construction, by tailors also so they can make fitting dresses.
3. Bakers also measure right quantity of ingredient so that the cake or pie can come out fine.