Презентация на тему Интегрированный урок математики и английского языка на тему Логарифмы (11 класс)

до н. э.)

Немецкий математик, один из изобретателей логарифмов
M.Shtiffel

1487

John Nepiera (1550 - 1617)

figure 1,2,3,4,…….
a lot of something
Operation
the process of person’s treatment
rules

in Maths (division, multiplication)

Power

an ability to control something

mathematical operations ( 42 , 53 , 87 , 214…)

Table

a piece of furniture

a list of numbers arranged in special order

in the text and underline mathematical terms.
Group No.2-read the

text and while reading choose the key sentences. Be ready to read them aloud.
Group No.3-read the text and answer the questions:
How many stages of development does logarithmic function have?
Whose names do these stages connect?

world famous scientists contributed significantly to many fields and

discovered several important concepts including logarithmic function which has several stages of its development.
The word logarithm comes from Greece words “Ioyoф”( means number) and “ apIvuoф” ( means ratio = отношение).
The basic principles of any logarithmic system has been known since ancient times even in ancient Maths of Babylon ( about 2000 years BC). Later Archimedes used the power (степень) of a number 103 in his calculations.
In the Middle Ages M.Shtiffel (1544) made four basic rules which are equivalents of four modern rules of logarithmic operations.
But the first formal system of logarithms was introduced by John Napier a famous English mathematician. He chose the term “logarithm” because it was used when two numbers were compared (сопоставлять). One of these numbers was a term of arithmetic progression, while the second – of geometric progression.
The first logarithm table was also invented by J. Napier. The main idea of logarithm table was as follows: each number had its own special number – logarithm which made division and multiplication much easier. He also invented the first slide-ruler. It was used as a means of calculations till 1970.
The inventors of logarithms calculated them by different methods but the idea was the same: to make the process of calculations easier.

н. э.)
John Nepiera (1550 - 1617)

Немецкий

математик, один из изобретателей логарифмов

M.Shtiffel 1487

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