Unit 6: Length, Perimeter, and Area

Length
Measure length, height, and distance using non-standard units such as thumbs and paces
Measure length, height and distance using standard units such as centimetres and metres
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Slide 1: Slide
MathematicsPrimary Education

This lesson contains 11 slides, with text slides and 2 videos.

Items in this lesson

Length
Measure length, height, and distance using non-standard units such as thumbs and paces
Measure length, height and distance using standard units such as centimetres and metres

Slide 1 - Slide

What is length?
Length is the term used for identifying the size of an object or distance from one point to Length is a measure of how long an object is or the distance between two points. It is used for identifying the size of an object or distance from one point to another. The length of an object is its extended dimension, that is, its longest side.

Slide 2 - Slide

 For example, the length of the ruler in the picture is 15 cm.

Slide 3 - Slide

Perimeter and area
Measure perimeters using non-standard units
Measure areas using non standard units
Describe the relationship between the size of a unit of area and the number of units needed to cover a surface 

Slide 4 - Slide

What is perimeter ?
The perimeter of a shape is the distance around the shape. It is the total length of the shape's sides.

Slide 5 - Slide

Slide 6 - Video

What is area?
Area is the amount of space covered by a flat shape or surface. We use area for flat spaces only. The cover of a book is flat. The front of a closet door is flat.

Slide 7 - Slide

Slide 8 - Video

Area
Inside a polygon 
Length x width
Count the square units
Operation x

Slide 9 - Slide

Perimeter
Outside a polygon 
Add each side length
Operation +


Slide 10 - Slide

How are they alike?
Alike: they both measure shapes
Different: they are different because area uses multiplication and perimeter uses addition

Slide 11 - Slide