WELCOME
TO OUR CLASS
Oval; pentagon; rectangle; circle; octagon; spiral; square; pyramid; cube; triangle; sphere
GUESS YOUR FRIENDS` IDEAS
counting
multiplying
adding
dividing
subtracting
Geometry
trigonometry
triangle
angle
circle
Sphere
Diameter
radius
Unit 4. MATHEMETICS (CONT`T)
Comprehension3: Toward Interpretation
a Why do schools teach mathematics?

b. Why is algebra a sort of shorthand?


c. What is the recent advance in mathematics mentioned in the passage ?

d. What can a computer do ?
They teach it because it plays such an important part in our lives.
It is a short of shorthand because it can state many mathematical ideas with just a few letters and signs. For example, …..
It is the building of great electronic computers.
A computer can, in a few seconds, solve problems that might take a man years to solve alone.
Work in groups of four to discuss these two questions
e. What branches of mathematics have you studied?
…………………………………………………………………………....................
f. What branches of mathematics do you like the most? Why ?
Ex: Among many ……………., I like …………. ...……………. because……………………….
…………………………………………………..
I have studied arithmetic, geometry, algebra, trigonometry and calculus.
School boys and girls study mathematics. Counting, adding, subtracting multiplying, and dividing are part of what they learn. Schools teach (1) ................ because it plays (2) …… an important part in our lives. How could we do such things (3)…….figure time, make change, build houses, or even keep score for a game without knowing about numbers? Simple(4) …………. with numbers, or arithmetic, is one branch of mathematics. Among the many(5)…………branches are geometry, algebra, trigonometry, and calculus. Mathematics has grown (6)…….. the need for it has grown. Geometry has to (7)…….. mostly with form - with such things as angles, triangles, circles, and spheres. Algebra is a sort of mathematical (8)……. ………. By using algebra we can state many mathematical ideas with just (9)………. letters and signs. If we want to say, for example, that in any circle the (10)…………. is twice the radius we can write: d = 2r. Gradually other branches of mathematics (11) …………….. added. Mathematics today is of great use to (12)…………. other sciences. Mathematics, however, is much more than a tool. It is a way of thinking - of drawing conclusions (13)………….facts. One (14) …………advance in mathematics is the building of great electronic computers, or calculating machines. In a few seconds a computer can (15)….............problems that might take a man years to solve alone.
mathematics
such
as
calculation
other
as
do
shorthand
a few
diameter
have been
many
from
recent
solve
Home work: Fill in the blanks with the words from the list. Make any changes if necessary:


Mathematics is one of the most (1)……….. subjects in school. In elementary schools, pupils learn(2)……….. adding, subtracting. multiplying and dividing. These (3)……. calculations are called arithmetic. Then in(4)……… school. they will learn other branches of mathematics such as………. (5)algebra, trigonometry. Mathematics (6)……. used in almost every field of activities (7)…….. lives. It has become(8)……… useful to many other sciences. However. it is much more than a tool. It`s a way of thinking ­drawing sound conclusions from facts.
***. From the above passage, make questions with the words given and then answer them:
What / pupils / elementary schools?
2. What / a way / thinking?
3. What/great use / many other sciences?
4. How/ important! mathematics?
5. What branches/ mathematics you like most?
geometry; count; day; great; simple; is; importance; high
THANK YOU VERY MUCH