Real Life situations
Area
Perimeter
Calculations
Grab Bag
100
Needing to know how much material you would need for a fence requires knowing how to calculate what?
perimeter
100
What is area measured in?
square units/ units squared
100
What is the formula for perimeter?
length + length + width + width
100
If a rectangle has a length of 15 and a width of 4, what is the perimeter?
38 cm
100
The words length and width for our purposes can be used interchangeably. True or False?
True
200
Needing to know how much paint you would need to paint your bedroom walls requires you to know how to calculate what?
area
200
What is the formula for area?
length multiplied by width
200
What is perimeter measured in?
units
200
If a square has a length of 9 cm, what is the area?
81 cm2
200
With an irregular polygon , why can't we calculate the area like rectangles and squares? 
Because the sides are not equal.
300
If Ms. Ayles bought a table that was 90 cm long and her doorway height was a meter and a half tall, would the table fit?
Yes, because 90 cm is less than a meter
300
If a student desk is 30 cm long and 20 cm wide, would an area of 150cm squared be accurate? Why or why not?
No because 20 x 30 = 600 cm squared
300
If a window had a length of 90cm and a width of 40 cm, is 130 cm a reasonable perimeter?
No because there are two lengths and two widths.
300
45 m
300
How many millimetres are in a centimetre?
10
400
Ms. Ayles thinks that her estimate of a paperclip being 100 mm is accurate. Could this be true? Explain
Yes, because 100 mm is 10 cm which could be the length of a paperclip
400
With an area of 100 cm squared and the length of a rectangle being 20 cm, what is the width?
50 cm
400
If a book has a length of 15 cm and the perimeter is 40cm, what is the width?
5cm
400
A square has an area of 64 cm2. What does the length have to be?
8 cm
400
Ms. Ayles can't figure out how long her nose is, she comes up with three estimates. 6cm, 15 cm, and 30 cm. Which is most realistic?
6 cm
500
What unit would you use to measure the distance of the classroom door to the gym door?
Meters
500
With an area of 36cm squared, Mary created a rectangle that was 9 cm by 4 cm. Macy created a square that 6cm by 6 cm. Who is correct?
They both are!
500
There was a rectangle with a perimeter of 80 cm. Ms. Ayles had a length of 40 cm and a width of 20 cm. Arshdeep had a rectangle with a length of 10 cm and a width of 20 cm. Who is correct?
Arshdeep is.
500
If a rectangle has an area of 42 cm 2 what are two sets of lengths and widths that would be reasonable?
6cm by 7 cm
21 cm by 2 cm
42cm by 1 cm
500
Ms. Ayles says she walks Lucy 2 km every morning. She then walks Lucy 3 km in the evening? Is this a realistic amount to take Lucy for a walk every day?
Yup - true story