A compass, is a drawing tool. It can also measure distances on a drawing or maps. Compasses are used in geometry, and design.
Compasses are usually made of metal, plastic or a combination of both. A simple compass has a hinge.
The hinge, which can be tightened with a screw driver, can be adjusted. This allows the arm to move changing the radius.
One part, (the needle point) has a solid sharp point at its end. The other end may have a pencil, a scriber ( a sharp-pointed tool for marking a circle on metal), or a marker to draw a colorful circle.
I purchased the bar compass at Loeb’s for about fifteen dollars.
Bar or beam compasses allow you to draw much larger circles and arcs.
Compasses are usually made of metal, plastic or a combination of both. A simple compass has a hinge.
The hinge, which can be tightened with a screw driver, can be adjusted. This allows the arm to move changing the radius.
One part, (the needle point) has a solid sharp point at its end. The other end may have a pencil, a scriber ( a sharp-pointed tool for marking a circle on metal), or a marker to draw a colorful circle.
I purchased the bar compass at Loeb’s for about fifteen dollars.
Bar or beam compasses allow you to draw much larger circles and arcs.
Bar Compass
Carpenters's Compass
The Compass and Protractor
Circle Protractor
I introduced the Circle Protractor first in my classroom but soon followed with the compass. A compass is generally used to draw circles or arcs and a circle protractor is used to measure angles but it can also be used to draw shapes .