Lesson History of mathematics
erimeter 1. Square 2. Rectangle 1. P = 4a 2. P = 2(l+b) Circumference
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- Bu sahifa navigatsiya:
- Surface Area
- Pythagoras Theorem
- Slope of a line
- Trigonometric Formulas
- Control work. Consolidation (Nazorat ishi. Mustahkamlash)
erimeter
1. Square 2. Rectangle 1. P = 4a 2. P = 2(l+b) Circumference 1. Circle 1. C = 2 (pi) r
1. Square 2. Rectangle 3. Triangle 4. Trapezoid 5. Circle 1. A = a 2
2. A = l x b 3. A = ½(b x h) 4. A = ((b 1 +b 2 ) x h) / 2 5. A = π x r 2
Surface Area 1. Cube 2. Cylinder 3. Cone 4. Sphere 1. S = 6l 2
3. CSA = π x r x l 4. S = 4 x π x r 2
1. Cylinder 2. Cone 3. Sphere 1. V = πr 2 h
2 h 3. V = 4/3 x π x r 3
Pythagoras Theorem a 2 + b 2 = c 2
d = √[(x 2 – x 1 ) 2 +(y 2 – y 1 ) 2 ] Slope of a line m = y
2 – y
1 / x
2 – x
1
Formula M = [(x
1 + x
2 )/ 2 , (y 1 + y
2 )/ 2]
Algebraic Formula 1. Pythagorean theorem 2. Slope-intercept form of the equation of a line 3. Distance formula 4. Total cost 5. Quadratic formula 6. Laws of Exponents 7. Fractional Exponents 1. a
2 + b
2 = c
2
2. y = mx + c 3. d = rt 4. total cost = (number of units) × (price per unit) 5. X = [-b ± √(b 2 – 4ac)] /2a 6. a m x b m = (a x b) m ; a
m x a
n = (a) m+n
7. a 1/2 = √a
Trigonometric Formulas 1. Sine Function 2. Cosine Function 3. Tangent Function 1. Sin x = Opposite Side/ Hypotenuse 2. Cos X = Adjacent Side/ Hypotenuse 3. Tan x = Opposite Side/ Adjacent Side What are the basic Maths formulas? The basic Maths formulas include arithmetic operations, where we learn to add, subtract, multiply and divide. Also, algebraic identities help to solve equations. Some of the formulas are: (a + b)
2 = a
2 + b
2 + 2ab
(a – b) 2 = a 2 + b
2 – 2ab
a 2 – b 2 = (a + b) (a – b) What are the fundamental topics for formulas in Maths? The fundamental concepts we learn for maths formulas are: Area and perimeter of shapes Surface areas and Volumes Algebra Powers and exponents Fractions Percentage, etc. What are the important Maths formulas? The important formulas are related to algebra, Pythagoras theorem, series and sequence, mensuration, calculus, probability and statistics, trigonometry, matrices, etc. What are the area and perimeter formula? The area of a shape defines the region covered by it whereas perimeter gives the total length of the outer boundary of the shape. Area is measure in square units but the perimeter is denoted by the unit of the dimension. Suppose, the formula for the area of a square is side 2 squnits. and perimeter of a square is 4(side) units. What is a 3 – b
3 formula? The formula for a 3 – b 3 is given by: a 3
3 = (a – b) (a 2 + ab + b
2 )
Answer the Questions. QUESTIONS
1
2 What are they? 3 Can you distinguish them each other? 4 What is perimeter formula?
The method of “Zig-zug” Students must write all words according to the theme in different figures. The students translate the words and make up sentences. Control work. Consolidation (Nazorat ishi. Mustahkamlash) Working on the text Text: “ PERSONAL BACKGROUND” (Alfred Nobel) This article needs additional citations for verification.please help improve this article by adding reliable references. Unsourced material may be chalanged and removed.(November 2010) Alfred Nabel was the third son of Immanuel Nobel (1801-1872)and Andriette Ahlsell(1805-1889).Born in Stockholm on October 1883, he went with his family to Saint Peterburg in 1842,where his father (who had invented modern plywood) started a “torpedo”works. Alfred studied chemistry with professor Nikolay Nikolaevich Zinin. When Alfred was 19 he went to the United States to study chemistry for four years and worked for a shot period under John Ericson, who designed the American Civil War ironclad USS Monitor. In 1859,the factory was left to the care of the second son,Ludvig Nobel (1831-1888),who greatly improved the business. Alfred returning to Sweden with father bankruptcy of their family business, devoted himself to the study of explosives, and especially to the safe manufacture and use of nitroglycerine (discovered in1847by Ascanio Sobrero, one of his fellow students under Theophile-jules Pelouze at the university of Torino).Abig explosion occurred on the 3 September 1864 at their factory in
Math formula Heleneborg inStockholmkilling five people. Among them was Alfred’s younger brother Emil.Though Nobel remained unmarried, his biographers note that he had at least three loves. Nobel’s first love was in Russia with a girl named Alexandra, who rejected his proposal. In 1876 Austro- Buhermian Countress Bertha Kinsky became Alfred’s secretary. But after only a breaf stae she left him to marry her previous lover, Baron Arthur Gundaccar von Suttner. Though her personal contact with Alfred Nobel had been brief,she corresponded with him until his death in 1896,and it is believed that she was a major influencein his decision to include a peace prize among those prizes provided in his will. Baron Arthur Gundaccar von Suttner was awarded in 1905 Nobel Peace Prize, for her sincere piece activities.Nobel’s third and long –lasting love was with a flower girl named Sofie hess from Vienna.This liaison lasted for 18 years and in many of the exchanged letters, Nobel addressed his love as “Madame Sofie Nobel”.After his deth, according to his biographers –Evlanoff and Fluor, and –Nobel’s letters were locked within the Nobel Institude in Stockholm and became the best kept secret of the time. They were releasedonly in 1955, to be included with the biographicaldata of Nobel.
Answer the Questions. QUESTIONS 1 What about is this article? 2 What was Alfre Nobel? 3 When and where was he born? 4 What do know about his creative activity?
Work on warm-up activity.
Draw different figures and write some words or numbers according to them inside these figures. Others must ask him in general questions and find their meanings. Student answers only “Yes” or “No”.
Questions : –Doyou know about Nobel Prize? –Did he know chemistry well? -Is this article about Nobel’ background? -… …. ….. ….. …. …. …. … … .. …..? Work on Cluster. During filling the cluster students must write all words according to the text in different figures. They do not discuss the words which they write in the cluster.
Working on the text verificati on
Nobel Prize
period backgrou
nd chemistr
y Personal backgrou nd
Read, translate and retell. English in topics, From Internet. “True or False” Write “T”
for true and “F”
for False. Correct the false sentences. 1.---- Alfred Nobel was the third son in his family. 2----He was born in Saint Peterburg. 3----Alfred studied chemistry with Professor Zinin. 4---- …. …. … … … … … … .. …….. ….. …..
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