**Elo!**

**Here is the HW for today:-**

**-ADMT - Design Journal, Multimedia Presentation, Prototype**

**-Math - Complete the practise paper, if you have not**

**-English - Learning Oasis Class: Go to http://shortstoryideas.herb.me.uk/scenarios.htm and complete your English Journal by next lesson**

**-History - Finish the SBQ worksheet given today**

****There is extra Chemistry lesson this WEDNESDAY. Please be there.**

****There is extra Chinese lesson this WEDNESDAY. Please be there.**

****There is extra Math lesson this WEDNESDAY.**

****There are History extra lessons this FRIDAY. Please be there.**

****Here is the format for the EOY maths exam:**

SEMESTER 2 EXAMS 2010 -

SEMESTER 2 EXAMS 2010 -

There will be 2 papers

Paper 1: 60 minutes - 45 marks

Paper 2: 75 minutes - 55 marks

There will be 2 papers

Paper 1: 60 minutes - 45 marks

Paper 2: 75 minutes - 55 marks

CALCULATORS WILL BE ALLOWED FOR BOTH PAPERS, but you will need to show all relevant workings to get the METHOD MARKS.

TOPICS FOR THE EXAM -

1) Factors & Multiples

2) Real Numbers

3) Approximation & Estimation

4) Rate, Ratio & Speed

5) Percentage

6) Number Patterns

7) Statistics

8) Angle & Parallel Lines

9) Triangles & Polygons

10) Algebra & Algebraic Manipulation - including algebraic fractions

11) Solving of Linear Equations

12) Factorisation & Expansion of Quadratic Expressions

13) Coordinates & Linear Graphs

CALCULATORS WILL BE ALLOWED FOR BOTH PAPERS, but you will need to show all relevant workings to get the METHOD MARKS.

TOPICS FOR THE EXAM -

1) Factors & Multiples

2) Real Numbers

3) Approximation & Estimation

4) Rate, Ratio & Speed

5) Percentage

6) Number Patterns

7) Statistics

8) Angle & Parallel Lines

9) Triangles & Polygons

10) Algebra & Algebraic Manipulation - including algebraic fractions

11) Solving of Linear Equations

12) Factorisation & Expansion of Quadratic Expressions

13) Coordinates & Linear Graphs

****Here is the format for the History EOY exam:**

• Structured essay questions(14 marks)

– 4 questions

• Source‐based questions(11 marks)

– 2 questions

• Total: 25 marks

• Time: 1 hour 15 minutes

• Structured essay questions(14 marks)

– 4 questions

• Source‐based questions(11 marks)

– 2 questions

• Total: 25 marks

• Time: 1 hour 15 minutes

What to revise:

What to revise:

Content(WW2)

– The concept of “conﬂict” and how WWII is an

example of conflict

– Japan’s reasons for going to war

– Why and how Singapore fell so quickly to the

Japanese in 1942

– Life during Syonan‐to: how the people in

Singapore were treated by the Japanese

Content(Immigration)

– The concept of “immigration”

– Voluntary and involuntary factors for immigration

to Singapore in the 19th Century

– Contributions of the early pioneers to the development of Singapore

Skills

– Structured essay questions – how to write an

introduction, do PEEL(s) and end your essay with a conclusion

conclusion

– Source‐based questions - 1)Basic Inference question 2) Inference + Purpose question

If you do not score over 55% for this exam, you will need to return on 29 or 30 Nov for a re-test.

Content(WW2)

– The concept of “conﬂict” and how WWII is an

example of conflict

– Japan’s reasons for going to war

– Why and how Singapore fell so quickly to the

Japanese in 1942

– Life during Syonan‐to: how the people in

Singapore were treated by the Japanese

Content(Immigration)

– The concept of “immigration”

– Voluntary and involuntary factors for immigration

to Singapore in the 19th Century

– Contributions of the early pioneers to the development of Singapore

Skills

– Structured essay questions – how to write an

introduction, do PEEL(s) and end your essay with a conclusion

conclusion

– Source‐based questions - 1)Basic Inference question 2) Inference + Purpose question

If you do not score over 55% for this exam, you will need to return on 29 or 30 Nov for a re-test.

****Here is the format for the EOY English exam:**

Paper 1 English

Section A: 30m - 1h (Free writing)

Narrative/Personal Recount [300-500 words]

Section B: 30m - 45 min (Situational Writing)[120-200 words]

{Advertising techniques may be tested}

Paper 2 English

40m - 1h 40 mins

Compre -> Indirect, Quote, Direct, Vocab questions (20m)

Summary 20m

Total: 100m

Paper 1 English

Section A: 30m - 1h (Free writing)

Narrative/Personal Recount [300-500 words]

Section B: 30m - 45 min (Situational Writing)[120-200 words]

{Advertising techniques may be tested}

Paper 2 English

40m - 1h 40 mins

Compre -> Indirect, Quote, Direct, Vocab questions (20m)

Summary 20m

Total: 100m

****Here is the format of the Geography EOY**

**:**

**Date: 18/10/10**

**Duration : 75 mins**

Total Marks : 30 marks

Structured Questions (Total : 30 Marks)

Population Geography (Lesson 8, 9 and 10)

Case Studies : India Population Studies

Case Studies : China’s One-Child Policy

Case Studies : Singapore Population Policy from 1970

Population pyramid

Demographic Transition Model

Industrial Location (Lesson 11)

Total Marks : 30 marks

Structured Questions (Total : 30 Marks)

Population Geography (Lesson 8, 9 and 10)

Case Studies : India Population Studies

Case Studies : China’s One-Child Policy

Case Studies : Singapore Population Policy from 1970

Population pyramid

Demographic Transition Model

Industrial Location (Lesson 11)

****There would be a Combined Science Test for EOY. Topics covered are everything we have learnt for all 3 Sciences. Please prepare for it.**

**This HW Reminder service is brought to you by Eunice**

(Disclaimer: If I happen to forget to list down any other homework, please, PLEASE, add it in as a comment)

*If there are any enquiries, please contact me:)

MSN: looeunice@hotmail.com

S108 Supports: Twisted Psychology Super8news

(Disclaimer: If I happen to forget to list down any other homework, please, PLEASE, add it in as a comment)

*If there are any enquiries, please contact me:)

MSN: looeunice@hotmail.com

S108 Supports: Twisted Psychology Super8news

Quadratic Equation is a polynomial equation of second degree. The general form of a quadratic equations is ax2+bx+c = 0.

ReplyDeleteThe contributions of the ancient Indian Mathematicians to quadratic equations are quite significant and extensive. Before 800BC Indian Mathematicians constructed 'altars' based on the solutions of quadratic equation ax2+bx+c =0, Aryabhatta gave a rule to sum the geometric series which involves the solution of a quadratic equation.

Discriminant of Quadratic EquationBack to Top

The following table shows the nature of the roots of a quadratic equation with rational coefficients.

Discriminant 2 Square root

= 0 perfect rational and equal

> 0

perfect or not perfect

rational and unequal (or)

irrational and unequal roots

< 0 not perfect complex and conjugate roots in pair

Formation of a Quadratic EquationBack to Top

Let us form the quadratic equation whose roots are and .

Then x = , y = are the roots

Therefore x - = 0 and

, y -

so (x - ) (y -

Maximum and Minimum Values of a Quadratic ExpressionBack to Top

An expression of the type ax2+bx+c is called " quadratic expression".

The quadratic expression ax2+bx+c takes different values as x takes different values.

As x varies from - to + ax2+bx+c

has a minimum value whenever a> 0.

The minimum value of the quadratic expression is (4ac-b2 )/4a and it occurs at x = - b/2a.

2. has a maximum value whenever a< 0.

The maximum value of the quadratic expression is (4ac-b2 )/4a and it occurs at x = - b/2a.

Quadratic Equation FormulaBack to Top

The general form of a quadratic equations is ax2+bx+c = 0 .

The set of all solutions of a quadratic equation is called its solution set. The values of x that make a quadratic equation true is called its roots or zeros or solutions. Quadratic equations can be solved by factorization method or by using quadratic formula

x = (-b± √(b²-4ac))/(2a)

quadratic formula

[x = (-b+-sqrt(b] 2 [-4ac))/(2a)]

[where b] 2 [ -4ac] [ is called the discriminant of the quadratic equation.] [ A quadratic equation has two roots. ]

I have given only explanation of Algebaric expression .So you can visit here for broadway :-

so visit algebraic expressions