Measuring Hands-On
How long is the bowl in centimeters?
9cm
Give me a benchmark for a mm, cm and m
mm - fingernail, cm - pinky finger width, m - door handle
What is the smallest unit on a ruler?
Millimeters
Would you use a centimeter ruler or a meter stick to measure the length of an airplane?
meter stick
Do you use more metres or more centimetres to measure the length of a football field?
Centimetres
How many cubes long is the envelope?
8 cm
Why might two people measure the same object and get different lengths?
Not measuring correctly or estimating
What units are on a metre stick?
Would you use a centimetre ruler or a metre stick to measure the length of desk?
Centimetre
Order the lengths from shortest to longest: 2 meters, 300 centimeters, 1 meter.
1 meter, 2 meters, 300 centimeters
How tall is the house in centimetres?
11 cm
Why do we need to label measurements with units?
So we know an accurate size of the object. If not, we could be trying to measure millimetres and think it is kilometres!
What is the largest unit we have worked with?
Kilometres
Would you use a centimeter ruler or a millimetre stick to measure the length of an ant?
centimeter ruler
If an object is 2 metres long, how many centimetres long would it be?
200 centimeters
How long is this marker in millimetres?
_____ mm
Why might a meter stick be better than a ruler for long objects?
Because it measures up to 100cm not 30cm
How many centimeters in a meter?
100 centimeters
What tool would you use to measure the back playground?
Measure this marker and measure this pencil crayon. How much longer is it?
___ cm longer
How many more cubes does the chocolate bar have than the snake?
2cm
Explain one reason why standard units are better than non-standard units.
More precise, exact or accurate.
How many millimetres are in a centimetre?
10 millimetres
What is the name of the kilometre measuring tool in a car?
Odometer
My water bottle is 30 centimetres long, how many millimetres long is it?
300 millimeters