Non-Standard Units
What is a non-standard unit?
An everyday item we can use to measure with when we do not have a ruler.
What is length?
How long something is.
How many millimetres are in a centimetre?
10.
What does mass mean?
How much something weighs.
What does capacity mean?
How much something can hold.
What non-standard unit could you use to measure the length of a piece of paper?
Answers may vary. (blocks, paper clips, pencil)
True.
How many centimetres are in one metre?
100 cm
True or false a milligram (mg) is about as heavy as a grain of salt?
True
Which container would have the smallest capacity?
1. Container of mayo.
2.Toothpaste tube.
3. Milk carton
2. Toothpaste tube
True or false: you can use your body as a non-standard unit?
True. You can use your feet, hands, arm span etc.
True or False: A millimetre is about the thickness of your fingernail.
True.
1000 m
Rank these units of measurement from HEAVIEST to LIGHTEST.
1. Gram (g)
2. Milligram (mg)
3. Kilogram (kg)
1. KG
2. G
3. MG
Which container would have the largest capacity?
1. Water bottle
2. Juice box
3. Can of paint
3. Can of paint
If you had to measure the length of the school hall, which non-standard unit would be the best option and why?
1. Snap cubes
2. Your feet
3. Paperclips
2. Your feet. It will take less time because your feet are bigger.
What would be the best option to measure the distance between Whitby and Toronto?
1. mm
2. cm
3. km
4. m
3. km
There are 10 millimetres (mm) in 1 centimetre (cm). How many millimetres are in 7 centimetres?
70 mm
If there are two items on a pan balance; a watermelon and a snap cube, what side of the pan balance would be lower? Why?
The side with the watermelon because it has more mass than a snap cube.
If we know that 1 gram is about the weight of a paperclip, what do you think the mass of a pen would be?
About 2-3 grams
Which of the following is FALSE when thinking of the rules with non-standard units?
1. Measure from end to end of an object.
2. Space out your non-standard units, leaving gaps.
3. All units must be the exact same size.
4. Make sure there are NO overlapping.
2. Space out your non-standard units, leaving gaps.
Rank these units of measurement for length from SMALLEST to BIGGEST.
1. Kilometres (km)
2. Milimetres (mm)
3. Centimetres (cm)
4. Metres (m)
1. mm
2. cm
3. m
4. km
There are 100 centimetres in 1 metre. How many centimetres are in 2 metres?
200 cm
If there is a pan balance with 1kg on the left side, and 700 g on the right side, how many more grams do I need to add to the right side to make the pan balance EQUAL?
300 grams.
Would a bucket hold more grains of salt or tennis balls? Why?
It would hold more grains of salt because they are smaller than tennis balls.