Last Wednesday's Maths

 Last Wednesday’s Maths

 

WALT: Estimate, take actual measurements, work out perimeters and

areas of objects around the house.

If you wanted to measure the length of a pen what unit of measurement

would you use?

Mm, cm or m? Both cm and mm are acceptable but mm will be more accurate. 

Estimate how long you think the pen would be

How long is it actually? I thought it was 10cm but it is 14.4cm or 144 mm

If you wanted to measure the height of a regular water bottle what unit of

measurement would you use?

You would use cm

Estimate the height of a water bottle

What is the actual height? I thought that my water bottle was 30 cm but

it was 22.7 cm 

What unit of measurement would you use to measure the length of your bedroom? 

You would use meters

Estimate the length of your bedroom I thought it was 5 meters 

What is the actual length of your bedroom? It is 3.73 meters  

Find the length of five objects in your house. Record what unit of measurement

and tool you are using to measure (e.g. a metre ruler or ruler, cm or mm)-Measuring tape

1.  A door  in your house- 1.95 meters

2.  A window- 74 cm

3.  Closet door- 1.99

4.  Table- 1.98 

5.  Your bed-1.85 meters

Can you work out the area of the lid of your chromebook? (Imagine it was 2D).

What measurements will you need to take? Length 30cm x width 20cm= 600cm

squared

Can you find the perimeter of your chromebook? Length- 30cm+width-20cm=50x2=

100cm

Can you work out the area of your bedroom? Length 3.76 x width 2.99= 3x2=6  

Find out what the dimensions should be for a regular basket ball court and a

regular football court. 

 

Basketball court- 29m by 15m

Perimeter- 29m+15m=44m (44x2)=88m

Area-29m x 15m= 29x10=290 29x5=145 290+145=435meters squared 

 

Football court 

Perimeter-105m by 68m  105m + 68m=173m x 2=346m

Area-105m x 68m=  100x68=6800m squared 5x68=340m squared  

6800m squared+340m squared=7140m squared

 

Find the perimeter of both these courts

 

Find the area of both these courts

 

Hint: Perimeter of a square = side x 4

Perimeter of a rectangle = 2 x length + 2 x width

Area of a square = side x side Area of a rectangle = length x width