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How to tell pupils about the relationship between numbers and codes?
How to tell pupils about the relationship between numbers and codes? As a method of converting digital information into specific symbols, digital code is closely related to mathematics. Just like a key and a lock are inseparable.

These figures are as follows:

There are several kinds of numbers, and Arabic numerals are the most common one. Arabic numerals were not invented by Arabs, but by Indians. In fact, it should be listed as Hindi, but it spread to Arabia first and then to the world, so it is called Arabic numerals. Numbers are written symbols used to represent numbers. Different counting systems can use the same number.

The history of numbers is as follows:

Around 500 AD, with the rise and development of economy, culture and Buddhism, Punjab in the northwest of Indian subcontinent has been in a leading position in mathematics, which originated in India. Astronomer Ayepihite made a new breakthrough in simplifying numbers: he recorded numbers in a grid, if there were symbols in the first grid, such as the point representing 1.

Then the same point in the second cell means ten and the point in the third cell means one hundred. In this way, not only the digital symbols themselves, but also their position order is of great significance. Indian scholars also introduced the symbol zero. It can be said that these symbols and representations are the old ancestors of Arabic numerals today.

About 700 years ago, the Arabs conquered Punjab, and they were surprised to find that the mathematics in the conquered area was more advanced than theirs. Later, Arabs introduced this figure to Spain. In 10 century, it was spread to other European countries by Pope Gelber Auriac.

The Arabic figures are as follows:

Arabic numerals originated in ancient India, not invented by Arabs. Numbers were later mastered by Arabs for business and spread to the west. Westerners call these numbers Arabic numerals because they first came into contact with Arabs and used these data, mistakenly thinking that they invented them, which has caused this historical misunderstanding.