This mathematics lesson for grade 1 introduces the concept of length as the distance from one end of an object to the other. It discusses using both standard tools like rulers that provide accurate measurements and non-standard tools like hands, paper clips, and feet to measure length. Students are asked to measure various objects using both standard and non-standard tools and learn that the standard SI unit for length is the meter, which can be abbreviated as m or cm.

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Mathematics
Grade – 1

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Today’s Topic…..

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What is length ?
Length is the distance from one
end to the other end of an object.

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Long
Wide

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Tools to Measure length
There are Two types
Standard
tools that give
you accurate
measurement
of an object.
Non standard
tools can be
any item that
can be use to
measure an
object.

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Here we are measuring pencil using non standard
tools.
Hand
span
Paper
clips
Feet's

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Vocabulary for length

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Measure these item using standard and
Non- standard tools

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SI unit of length
The unit for
length in the SI
is the metre,
abbreviated with
a lower case m
or we can also
use cm.

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Measure these object using ruler