Length - Applying Length

In the previous posting, you have learned about length. Now you will about units of length and how to apply them.

The units of length in this topic are: Meter (m), Centimeter (cm)

1 Meters (m) = 100 Centimeters (cm)

To convert an object with 3 meters of length into centimeters, you just need to multiply the number (in this case, 3) with 100. For example:

A length of a 'wau' is 1 meter. How long is the length of it in centimeters?
1m X 100 = 100cm

So, the 'wau' is 100 centimeters in length.


Now you try:

Imagine Ruler A is 1 meters long. Ruler B is half of the length of Ruler A. Ruler C is 30 centimeters.Between Ruler B and Ruler C, which one is longer?

Answer:

Ruler A is 1 meters long.
Ruler A: 1m X 100 = 100cm

Ruler B is half the length of Ruler A.
Ruler B: Length of Ruler A ÷ 2
Ruler B: 100cm ÷ 2 = 50cm

Ruler C is 30cm long.

So Ruler B is 50cm, Ruler C is 30cm.

Ruler B is longer.

That is all for today. Thank you.

Length - Introduction

Good day. Today, we will learn about length.

Length is the distance measured between two points.


To get a basic idea, compare a ruler and a pencil. Which one is longer?

VS

As you normally seen, a ruler is longer than the pencil. So we can say the length of the ruler is more than the pencil.

Height (tall) and length (long) are similar. To get the idea:
1) Try compare your height between you and your friends, see who is taller?

2) Look at your hand. Which of your finger is the longest?


Now look at the picture below:

Which mountain is the tallest?

            Left Mountain                                Center Mountain                                Right Mountain

Thank you.