
What does the step ladder KHDMDCM mean?
 King Henry doesn't mind drinking chocolate milk
 King = km
 Henry = hm
 doesn't = dam
 mind = m
 drinking = dm
 chocolate = cm
 milk = mm

Volume
 the amount a 3D shape can hold (how much can go inside)

Volume of a Rectangle
V = Length x Width x Height

Volume of a Triangular Prism
V = base x height divided by 2

Perimetre
the distance around a particular object

Perimetre of a Rectangle
P = (length + width) x 2
OR
P = 2L + 2W

Perimetre of a Triangle
P = side 1 + side 2 + side 3

mm to cm...what do you do?
divide by 10
e.g. 150 mm = 15 cm

cm to m...what do you do?
divide by 100
e.g. 200 cm = 2 m

m to km...what do you do?
divide by 1000
e.g. 3500 m = 3.5 km

Surface Area
the area of all the faces of a 3D shape added up all together
use the area of rectangle (L x W) and the area of a triangle (B x H divided by 2) for these calculations

km to m
x 1000
e.g. 5 km = 5000 m

m to cm
x 100
e.g. 4.5 m = 450 cm

cm to mm...what do you do?
x 10
e.g. 17 cm = 170 mm

mL to L ...what would you do?
divided by 1000
e.g. 35000 mL = 35 L

L to mL...what do you do
x 1000
e.g. 72 L = 72 000 mL

For King Henry doesn't mind drinking chocolate milk...how does it work?
 if moving down the ladder you x 10 for each step
 if moving up the ladder you divide by 10 for each step

10 cm = ______ mm
x 10
So, 10 cm = 100 mm

100 m = _____ km
divided by 1000
So, 100 m = 0.1 km

5650 mm = _____ m
go up the ladder 3 times
So, divide by 10, then divide by 10, then divide by 10
So, 5650 mm = 5.65

78 km= _______ hm
move down the ladder 1 time
So, x 10
So, 78 km = 780 hm

4820 cm = _____ dm
move up the ladder 1 time
So, divide by 10
So, 4820 cm = 482 dm

78 569 mL = ______ L
divide by 1000
So, 78 569 mL = 78.569 L

982 767 cm = ______ m
 move up the ladder 2 times
so divide by 10, then divide by 10 again
So, 982 767 cm = 9827.67 m

What type of measurement would you use to measure a fingernail?
mm would be most accurate
could use cm

What type of measurement would you use to measure the distance between Hamilton and Florida?
km
it is the longest measure of distance and it is a long way from Hamilton to Florida

What measurment would you use to measure the height of a tree?
metres
dam (a decametre is 10 metres)

What measurement would you use to measure the length of a desk?
cm would be most accurate
mm would be extremely accurate but take too long

What unit of measure would you use to determine the distance from your house to school?
it depends on how far away you live
if you live across the street you might choose metres
if you want at least 10 minutes you might want to use dam, hm, or km

What unit of measurement would you use to find the amount of water in a swimming pool?
Litres

