Teacher’s Note: Teacher can guide the students to know the difference in measurements observed by measuring footspan (non uniform non standard) and a stick (uniform non standard).

__Measuring length using uniform non standard tools__

__Travel Through__

**Measuring length in a long jump ground**

Key words: Length

**Teacher’s Note:** Teacher can guide the students to know the difference in
measurements observed by measuring footspan (non uniform non standard) and a
stick (uniform non standard).

__Learn__

How many times of this eraser’s length will be equal to the
length of this pencil?

I guess it will be 5 times.

My guess is 3 times.

Ok, Let us measure and find.

Length
of the pencil is four times the length of the eraser.

Oh! My guess is more.

My guess is less.

**Teacher’s Note:** Encourage the students to guess the measurement and
verify it by actually measuring them. Try to make the guess close to actual
measure by providing various opportunities.

__Practice__

Observe
the measuring tool, guess and write the length of the real object by guessing.
Then, use the measuring tool and write the measured value.

**Teacher’s Note:** Teacher can make the students to measure various objects
in the surrounding by guessing and by actual measurement using non standard
tools.

__Try This__

Colour the squares to match the length of the objects. Count the
coloured squares and write the count inside the circle.

Observe the above table and answer the following questions.

1. Which two objects have the same length?

Answer: Pen and pencil

2. Which is the longest object?

Answer: Stationary box

3. What is the total length of the pencil and crayon?

Answer: Six

4. Is the pencil box longer than the pencil? If yes, by how many
squares?

Answer: Yes, two

5. Which is the shortest object?

**Answer: **Eraser

__Think Like A Mathematician__

Which
among the given tools would be appropriate to measure the brim of the round
table?

**Answer:** rope

Tags : Measurement | Term 1 Chapter 4 | 2nd Maths , 2nd Maths : Term 1 Unit 4 : Measurement

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

2nd Maths : Term 1 Unit 4 : Measurement : Measuring length using uniform non standard tools | Measurement | Term 1 Chapter 4 | 2nd Maths

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