Bellwork 8-7-20141. List 5 types of measurement you can think of.
Ex. length
2. What tools would you use in your measurements? In other words, how would you measure each type you listed in #1
3. Take out syllabus to be checked
Intro to Measurement
large body of matter with no definite shape
the measurement or extent of something from end to end
Scale
Ruler
Grams (g)
Meters (m)Centimeters (cm)
Intro to Measurement the extent or measurement of a surface or piece of land
the amount of space that a substance or object occupies, or is enclosed in a container
Ruler and calculator (calculus)
Container i.e. graduated cylinder
m2
Liters (L)
Intro to Measurementthe indefinite continued progress of existencethe degree orintensity of heat present in a substance or object
power derived from the utilization of physical or chemical resources
Clock/timer
Thermometer
SecondsMinutesHours
Degrees Celsius
Joules Calorimeter
Metric System
M
k
h
Mega
kilohe
cto
millions
thousands
hundreds
1,000,000
1,000
100
Mg
kg
hg
Metric System
da
unit
d
deka
g,m,L
deci
tens
ones
tenths
1
10
0.1
dag
g
dg
Metric System
c
m
centi
milli
hundredths
thousandths 0.001
0.01 cg
mg
Draw this in your packetk Each step up or down adds a 0hdudcm
What is a ratio?Talk with your neighbor and come to an
agreement about what a ratio is or what it looks like
What is a ratio?It is a fraction
i.e.
What is a conversion factor?
A ratio with units… i.e. 2.54 cm
1.0 inches
1.0in = 2.54 cm
Conversions7 Easy Steps:1.Start with what you are given, what units
you know2.Write in a multiplication sign3.Draw a ratio bar4.Put the units you are trying to figure out
on the top5.Put the units you are crossing out on the
bottom6.Put in conversion factor7.Multiply across and you are done!
Practice10 grams to kilograms
500 milliliters to liters
65 hectometers to millimeters
TipsWhen using the conversion factor, the bigger
number goes with the smaller unit i.e 1000 mm in 1 m
When going UP the ladder, bigger number goes on the bottom of the conversion factor
When going DOWN the ladder, bigger number goes on the top of the conversion factor
More Practice How many grams are 45 kilograms?
What is 460 liters in centiliters?
How many seconds are in 85 minutes?
Practice ProblemsWork on the practice problems in your
packet on your OWN sheet of paper
Exit Slip1.Why is it important to have a
universal system of measurement? 2.What is the purpose of conversions?
Why do we do it?