Teacher’s note : Teacher can facilitate the children to understand the need for standard measurements.

__Need
for standard Measurement.__

__Activity 1__

Ragu measured the length
of his class table using the non−standard measurements and tabulated them as
follows. complete the following table by measuring the length of your class table
along with your friends by measuring the length of your class table.

__Activity 2__

Measure the length of a
ribbon by your hand span.

Friend 1 −______________ hands pan

Friend 2 −______________ hands pan

Friend 3 −______________ hands pan

Friend 4 −______________ hands pan

Measurements made using
non standard units differ from person to person.

**Can you guess the reason
for**** ****their different answers?**

Measuring the length of objects around
us using simple tools.

__Activity 3__

**Form a group of 5
members and measure the length of the blackboard in you classroom using the
following tools and tabulate it.**

**Notebook and a ruler**

Observe the measurements and discuss

Did you note that all the measurements made by Kala and her friends are same?

** **

__MEASUREMENT OF LENGTH__

NON − STANDARD UNITS

1. Finger
width

2. Hand span

3. Cubit

4. Pace

5. Foot span.

( Measurement varies from person to person
)

STANDARD UNITS

1. Millimeter

2. Centimeter

3. Meter

4. Kilometer

( Measurement remains
the same. )

**Teacher’s note :** Teacher can facilitate
the children to understand the need for standard measurements.

Tags : Measurements | Term 1 Chapter 4 | 3rd Maths , 3rd Maths : Term 1 Unit 4 : Measurements

Study Material, Lecturing Notes, Assignment, Reference, Wiki description explanation, brief detail

3rd Maths : Term 1 Unit 4 : Measurements : Need for standard Measurement | Measurements | Term 1 Chapter 4 | 3rd Maths

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