À propos de ce produit
Obtenez {EARNING_RATE} de remise¹ en récompenses, plus d'autres avantages exclusifs.
ou
Noté 2 sur 5 étoiles.
Avis 1-3 de 3
Noté 1 sur 5 étoiles.
THESE ARE NOT A PACK OF 12!
Noté 4 sur 5 étoiles.
This is a plastic compass, designed to draw circles of various sizes. This product is easier to use than the venerable two-legged compass. And it is much harder for diabolical 7th-graders to cause injury with these tools. The orange SAFE-T compass, with several dozen holes, is probably easier to use, but that device doesn't allow for a student to draw a circle of precisely the correct radius, while this device does. The compass holds its position through friction; there's no "tightening" of the device that holds the radius constant. Plastic being what it is, eventually the frictive edges smooth down, and the compass loses its ability to maintain a constant radius. But there should be a couple dozen hours of use before this problem occurs. This is the tool I use in the classroom, and I am generally pleased by it. The "protractor" at one end is too small to be of much use.
Noté 1 sur 5 étoiles.
I STRONGLY RECOMMEND NOT BUYING THIS!!!!, and not good is to high for this produst I would give it -100 stars if i could.
