PPT: Measuring Length | Mathematics Olympiad Class 4 PDF Download

 Page 1


Measuring 
Length
Page 2


Measuring 
Length
Introduction
Measuring length is a key skill for daily life.
We use it to measure:
Height of a door.
Length of a pencil.
Distance between places.
Page 3


Measuring 
Length
Introduction
Measuring length is a key skill for daily life.
We use it to measure:
Height of a door.
Length of a pencil.
Distance between places.
Understanding Length 
Measurement
Length
Measures how long something is from one end to another.
Types of measurements:
Len gth: How long (e.g., a rope).
Height: How tall (e.g., a person).
W idth/Breadth: How wide (e.g., a table).
Depth: How deep (e.g., a pool).
Each depends on the object's orientation.
Page 4


Measuring 
Length
Introduction
Measuring length is a key skill for daily life.
We use it to measure:
Height of a door.
Length of a pencil.
Distance between places.
Understanding Length 
Measurement
Length
Measures how long something is from one end to another.
Types of measurements:
Len gth: How long (e.g., a rope).
Height: How tall (e.g., a person).
W idth/Breadth: How wide (e.g., a table).
Depth: How deep (e.g., a pool).
Each depends on the object's orientation.
Standard Units of Length
Standard units ensure consistent measurement:
Meter (m): For longer distances.
Examples: Height of a door, length of a 
classroom, width of a blackboard.
Centimeter (cm): For smaller objects.
Examples: Width of a book, length of a finger.
Conversion:
1 meter = 100 centimeters.
1/2 meter = 50 cm.
1/4 meter = 25 cm.
Page 5


Measuring 
Length
Introduction
Measuring length is a key skill for daily life.
We use it to measure:
Height of a door.
Length of a pencil.
Distance between places.
Understanding Length 
Measurement
Length
Measures how long something is from one end to another.
Types of measurements:
Len gth: How long (e.g., a rope).
Height: How tall (e.g., a person).
W idth/Breadth: How wide (e.g., a table).
Depth: How deep (e.g., a pool).
Each depends on the object's orientation.
Standard Units of Length
Standard units ensure consistent measurement:
Meter (m): For longer distances.
Examples: Height of a door, length of a 
classroom, width of a blackboard.
Centimeter (cm): For smaller objects.
Examples: Width of a book, length of a finger.
Conversion:
1 meter = 100 centimeters.
1/2 meter = 50 cm.
1/4 meter = 25 cm.
Measuring a Pencil
1
Choose the right unit
Pencils are small, so we measure them in 
centimeters (cm).
2
Use a ruler to measure the length of a pencil.
3
Measure correctly
Example: Place the pencil along the ruler, 
aligning one end with 0 cm.
Read the length where the other end falls 
(e.g., 15 cm).