Chalks are clay sticks used to write on a blackboard or blackboard. As the person moves the chalk over the surface, particles are released that allow the strokes to be created. Then, with an eraser, the blackboard can be cleaned, removing these chalk particles.
Chalkboards are usually black or green; The most popular chalks, therefore, are white chalks , since it is possible to observe what is written or drawn with great ease, even from a considerable distance . There are, however, chalks of different colors: blue, red, yellow, etc.
history of chalk
It is important to establish that the etymological origin of the term chalk is found in the Nahuatl tizatl and can be translated as "plaster" .
In Ancient Egypt, this material that concerns us can already be noted that it played a fundamental role. And we have managed to know that at that time it was used to undertake many of its constructions. All this was because there was an island that was very rich in it, called Gypso . This term would later be the one that led to plaster .
Its use in the academic field and in billiards
It can be said that, while on a sheet of paper one usually writes with a pencil, a pen, a pen or a marker , on a certain type of blackboard one always writes with chalk. Unlike the other methods mentioned, chalk writing is not permanent: it can be easily erased. In fact, writing with chalk is an action that is carried out knowing that the text will be deleted in the short term.
In classrooms , chalk – known in some countries as plaster – was for many years an essential element for teaching . Teachers and professors, when teaching, used to write with chalk on the blackboards. With the help of an eraser , they could write and erase as many times as they needed.
Currently, chalk is still very important in the field of education , although teachers also have other tools that facilitate their work, such as computers and equipment for making projections. This means that the chalks are complemented with different objects and accessories for the transmission of knowledge.
Specifically, in many schools, although there is still a blackboard, it is now digital, so people do not write on it with chalk but with a type of marker suitable for the aforementioned technology.
In billiards , meanwhile, the plaster that is rubbed on the cues to improve the precision of the shots is called chalk.
Chalk in music
We cannot forget either that Tiza is the name of a singer-songwriter from Madrid who has a total of six albums on the market and who has, among her main hits, singles such as "Mala vida" , "The following" and "Pajaritas de paper" .
Within the musical field, it must also be emphasized that the word chalk in question is part of the title of one of the most important songs in the discography of the emblematic Spanish pop group Radio Futura . We are referring to the composition "Corazón de tiza" , which was published in 1990 and is included in the album "Veneno en la Piel" . It achieved great success, reaching number 1 on the list of the radio network Los 40 Principales .