Activity: Personal Measures
Here is a clever thing you can do:
Measure how wide your hand is, how long your arm is, the width of your fingernails and more!
Then as you are walking around you can measure other things using your body.
You will need:
- A ruler (for smaller measures)
- A tape measure (for larger measures)
- A measuring cup (optional)
- Pen and paper
Measure using millimeters (mm) or inches (in). Try to do both if you can.
|1 large step|
|1 pace (= 2 normal steps)|
|end of thumb|
|across 4 fingers together|
|handspan (finger to thumb)|
|arm to opposite shoulder|
|length of foot
|length of forearm
(elbow to wrist)
|between two biggest knuckles|
|nose to outstretched hand|
Put a copy of this on your wall!
If you are still growing, remember to redo this in a year or two.
Choose 4 of those measures to be your "favorites", the ones you find easiest to remember. Include at least a small, a medium and a large one.
Using The Measures
Now you get to use them!
Measure each of the following, first using your "Personal Measures", then using a ruler or tape measure to see how close you get!
using a Personal Measure
using a ruler or tape measure
|Paperclip (width)||3 fingernails = 30mm||32 mm|
|Chair seat (height)|
|Chair back (height)|
You can also use your hands to measure volume, like this:
|water in the palm
of your hand
|water in two cupped hands|
How To Measure
Do this measurement in the sink.
When you have filled your hand (or hands)
Do this (say) 5 times, see how much is in the cup,