Measurement Class 1 Notes Maths Chapter 7

Comparing Lengths

The teacher asks the students to stand heightwise in a line.
Akshay to Ankush: Let us stand next to each other to check who is taller, who is shorter?

Akshay is taller than Ankush.
Ankush is shorter than Akshay.

Other students also did the same activity with each other and the line is formed as asked by the teacher.

Measuring Length

Mohit and Meeta are placing their pencils along the edge of the table top to measure the length of the table.
Mohit: Length of the table is the same as 10 pencils.
Meeta: Length of the table is the same as 14 pencils.
Their measurement is different because Meeta's pencil is shorter than Mohit's pencil.
For correct measurement, Mohit and Meeta both should have used pencils of the same length.

Edurev Tips: If two people measure the length of the same object using the same ‘standard length’, their measurement will be the same or nearly same.

Measuring Length Using Body Parts

Long ago, people used to measure the length or height of objects using their body parts.
Some body parts that used as units of lengths are shown below:

Comparing Mass (or Weight)

are playing on a see-saw.
is light. Ant weighs less. It has less mass.
is heavy. Elephant weighs more. It has more mass.

• In everyday routine, we consider no difference in the meaning of mass and weight. 
• Weight of an object tells how heavy or light the object is.

Measuring Mass

Kripa and Vanshika are playing with their "Toy Balance" and blocks to know how heavy their toys are.
When the balance is level, it means the mass on two sides of the balance is equal.
Here, the mass of the toy car is 5 blocks.

Comparing Capacity

Capacity of a container tells how much liquid it can hold.

Measuring Capacity

This teapot holds 3 cups of tea. Or we can say that capacity of this teapot is 3 cupfuls.