Week 2 GRADE 7 - MATHEMATICS
Transcript of Week 2 GRADE 7 - MATHEMATICS
GRADE 7 - MATHEMATICSWeek 2
MEASURE & MEASURING DEVICES
What is Measurement?●Measurement is finding a
number that shows the size or amount of
something.There are different types of measurement:
● Length;● Area / Perimeter;
● Volume;● Mass / Weight;
● Temperature; and● Time
“LENGTH- is how far is an end to another end; also called distance.
Example:The length of this guitar is about 1 meter.
AREA- is the size of a surface: how much is inside the boundary of a
flat (2D) object, such as a triangle or a circle. Different shapes have different ways to find the area.
Example:He trained his dog to wait patiently inside 1 square meter per mat.
“VOLUME- is the amount of 3-dimensional space an object occupies
and is also called capacity.
Example:This jug has exactly 1 liter of water in it.
MASS / WEIGHT- is how much matter something contains and how heavy
something is.
Example:This bar of gold has a mass of 1 kilogram.
“TEMPERATURE- is how hot or cold a thing is.
Example:This block of ice would measure 0° Celsius or 32° Fahrenheit.
TIME- is the ongoing sequence of events taking place.
Example:He arrive at the meeting place at 3:00 in the afternoon.
UNITS OF MEASUREMENT an
MEASURING DEVICES
Common Units
meter = msquare meter = m
hectare = ha
LENGTH & AREAMeasuring Devices
Ruler / Meter & Yard Stick
Measuring tapeFlexometer
Caliperetc.
Common Units
gram = gkilogram = kg
ounce = ozpound = lb
ton = t
MASS / WEIGHTMeasuring Devices
Weighing scalesBalances
etc.
Common Units
seconds = sminutes = min
hour = hrday = day
months = mosyear/s = yr/s
TIMEMeasuring Devices
Clock(Stop) Watch
CalendarHourglass / Timers
Common Units
Celsius = CKelvin = K
Fahrenheit = F
TEMPERATUREMeasuring Device
Thermometer
Common Units
liter = Lgallon = gal
pint = ptquart = qt
VOLUME (of liquids)Measuring Devices
Beaker / Measured CylindersSpoons
(Measuring) Cupsetc.
SHORT ACTIVITYDIRECTIONS: Match the
abbreviation with the correct name and measurement.
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GOOD JOB!
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