SCIENCE YEAR 2 ~ UNIT 5 LONG OR SHORT

Lesson 1 - Observe and Compare the Lengths and Heights

• Have you been the Petronas Twin Towers and Kuala Lumpur Tower? Do you know which building is taller?

Kuala Lumpur Tower

Petronas Twin Towers

• When we compare the lengths or heights, we place the objects side by side to see which one is longer or longer.

• Ruler and measuring tape are standard tools used to measure the length or height.

• We can measuring the length using non-standard tools.

Lesson 2 - Measure the Length and Height Using Non-standard Tools

•      There are many ways to measure the length or height using non-standard tools. 
•     Example :

 book

chalk

 eraser

 

 

 

 

 

 

 

 

 

 

 

 

 

straw

paper clip

• Some objects are long, some are short.
• Some objects are tall, some are short.
• We compare the lengths of objects to find out which is longer or shorter.
• We compare the heights of objects to find out which is taller or shorter.
• We use non-standard tools like straws and strings to measure the lengths or heights of objects.