SI UNIT Usually, at a normal classroom size, the tool to use would probably be to measure it in either yards or meters. TOOL A yard stick
meters
Centimetres.
8 to 10 meters
An approximate volume can be calculated by assuming the classroom is a cuboid (which it nearly is, except for windows, doorposts, etc) and measuring its length, its width and its height and multiplying the three lengths together. For a more accurate value, measure the largest cuboid that would fit in the room, calculate its volume and then add on the volume of every little nook and cranny of the classroom (by measuring them and calculating their volume).
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
meters
The metric unit of the meter would be the appropriate measure of the area of classroom. Calculating area involves multiplying the length (in meters) of the classroom's length and width. Area of the classroom would be in square (^2) meters.
Meter stickI'm thinking you would use a tape measure
With a tape measure or a yard stick.
yards
A stapler
Meters
Identify the SI until you would use the measured the width of your classroom
I would use a tape measure. This would require one person to help me, since the tape measure would have to be held at both ends. Even if the classroom is longer than the tape measure, I could just mark the full extent of the tape and then measure again from there.
meters
The square meter.