# 2013 S3-01 Maths Blog

## Thursday, 19 September 2013

## Monday, 16 September 2013

### Assessment in Term 4 2013

Dear SSTudents,

As mentioned earlier the deadline of the PT2 is 16 September 2013 @ 2359. To date many students have submitted their products with high quality questions and 'proof's. Effective use of ICT tools (google, Blog, Geogebra, Keynote, Powerpoint, Pretzi etc) have further enhanced the final product.

The assessment information will be as follows:

Date:

(Please be punctual and ensure you have a heavier meal in the morning)

Time: 3.00 pm to 4.00 pm

Venue: Auditorium

Note that you are required to sit according to your classes and index numbers. The teachers will supervise you on this.

Logistic:

TI84 Graphic Calculator (or other approved GC model)

(no other calculator will be allowed)

Stationery - pen and ruler

Please refer to your class math blog or google site earlier entries on this.

**1. Performance Task 2 (in lieu of Elementary Mathematics)**As mentioned earlier the deadline of the PT2 is 16 September 2013 @ 2359. To date many students have submitted their products with high quality questions and 'proof's. Effective use of ICT tools (google, Blog, Geogebra, Keynote, Powerpoint, Pretzi etc) have further enhanced the final product.

**2. Paper 3 (in lieu of Additional Mathematics)**The assessment information will be as follows:

Date:

**23 September**2013 (Monday)(Please be punctual and ensure you have a heavier meal in the morning)

Time: 3.00 pm to 4.00 pm

Venue: Auditorium

Note that you are required to sit according to your classes and index numbers. The teachers will supervise you on this.

Logistic:

TI84 Graphic Calculator (or other approved GC model)

(no other calculator will be allowed)

Stationery - pen and ruler

**3. Information on EOY**Please refer to your class math blog or google site earlier entries on this.

*All the best - you can do it because we have faith in you but do you!*## Saturday, 31 August 2013

### Update on Assessment (i) PT2 (ii) P3 (iii) EOY

**(1) Performance Task 2**

This constitutes the Elementary Mathematics component of Assessment.

The performance task focuses on the topic of Geometrical Proof - Circle Properties. (please refer to Blog entry on Mathematics Performance Task 2)

Deadline for submission is

**Term 4 Week 1 (first lesson)**

**(2) Paper 3**

This constitutes the Additional Mathematics component of Assessment.

This will be conducted in

**Term 4**.
Students are expected to familiarise themselves with GC-TI84+.

(please refer to your Math teacher on information on use of GC-TI84+)

**(3) End-of-Year Examination: Mathematics**

Information pertaining to the Maths exam has been communicated to the students in the GoogleSite (as well as the Maths blog).

__Elementary Mathematics paper 1__

Date:

**27 September 2013**(Friday)
Duration: 1 hour 30 minutes

__Elementary Mathematics paper 2__

Date:

**30 September 2013**(Monday)
Duration: 2 hours

__Additional Mathematics__

Date:

**4 October 2013**(Friday)
Duration: 2 hours 30 minutes

**Table of Specification**

__A. Elementary Mathematics__

• Numbers and the four operations (moe 1.1)

• Algebraic representation and formulae (moe 1.5)

• Functions and graphs (moe 1.7)

• Algebraic manipulation (moe 1.6)

• Solutions of equations and inequalities (moe 1.8)

• Properties of circles (moe 2.3)

• Coordinate geometry (moe 2.6)

• Trigonometry

• Mensuration

__B. Additional Mathematics__

**(A1) Equations and inequalities**

**Conditions for a quadratic equation**

Solving

**simultaneous equations**in two variables with at least one linear equation, by substitution
Relationships between the

**roots and coefficients of a quadratic equation**
Solving

**quadratic inequalities**, and representing the solution on the number line**(A2) Indices and surds**

**Four operations**on indices and surds, including rationalising the denominator

**Solving equations**involving indices and surds

**(A3) Polynomials and Partial Fractions**

Multiplication and division of polynomials

Use of

**remainder and factor theorems**
Factorisation of polynomials

**Partial fractions**

**(A4) Binomial Expansions**

**(A5) Power, Exponential, Logarithmic, and Modulus functions**

**(G1)**Trigonometric functions, identities and equations.

- · Six trigonometric functions for angles of any magnitude (in degrees or radians)
- ·
**Principal values**of sin–1x, cos–1x, tan–1x - · Exact values of the trigonometric functions for
**special angles**(30°,45°,60°) or (π/6, π/4, π/3) - ·
**Amplitude, periodicity and symmetries**related to the**sine and cosine**functions - ·
**Graphs**of**y**=**a**sin(**bx**) ,**y**=**a**sin(**x/b + c**),**y**=**a**cos(**bx**) ,**y**=**a**cos(**x/b + c**) and**y**=**a**tan(**bx**) , where a is real, b is a positive integer and c is an integer. - · Use of the following
- ∗ (BASIC TRIG RULES)
- sin A/cos A=tan A,
- cos A/sin A=cot A,
- sin2A+cos2A=1,
- sec2A=1+tan2A,
- cosec2A =1+cot2A
- (DOUBLE ANLES)
- the expansions of sin(A ± B), cos(A ± B) and tan(A ± B)
- the formulae for sin 2A, cos 2A and tan 2A
- (R-FORMULA) - the expression for acosu + bsinu in the form Rcos(u ± a) or R sin (u ± a)
- Simplification of trigonometric expressions
- ·
**Solution of simple trigonometric equations**in a given interval (excluding general solution) - ·
**Proofs**of simple trigonometric identities

**(G2) Coordinate Geometry**

Condition for two lines to be parallel or perpendicular

**(G2) Linear Law**

**Transformation of given relationships, including y = axn and y = kbx, to linear form to determine the unknown constants from a straight line graph**

**Resource and References**

The following would be useful for revision:

- Maths Workbook
- Study notes
- Homework Handouts
- Exam Prep Booklets (that was given since the beginning of the year)
- Ace Learning Portal - where they could attempt practices that are auto-mark
- Past GCEO EM and AM questions (students were recommended to purchase these at the beginning of the year)

**(4) General Consultation and Timed-trial during the school holidays**

**Monday 9 September 2013**(Monday). The focus would be on Additional Mathematics and students are strongly encouraged to attend.

Duration: 0800 - 1030 (2 hours 30 minutes)

### Mathematics Performance Task 2

**Due Term 4 Week 1 (first Mathematics Lesson)**

*the file could be downloaded from google site.*

Please fill-up this form once you have submitted the work.

## Thursday, 29 August 2013

### Essential GC Skills for Paper 3

View each video carefully and learn these fundamental GDC skills.

1. Basic Graphing Controls

a. Zoom Options

http://www.youtube.com/watch?v=r7DWbhWd9zE&list=PLB1A524363687A860

b. Setting the Window

http://www.youtube.com/watch?v=a_uJpI6LXr4

2. Graphing Basics

a. Graph a line and find the table of values:

http://www.youtube.com/watch?v=3WctC2xCnI0

b. Finding coordinates of turning points of a graph:

http://www.youtube.com/watch?v=pXRbQv8gauI

c. Finding intersection between two graphs:

http://www.youtube.com/watch?v=M-1QUYQbYHM

(comes with exercises)

d. Finding roots and y-intercept of a graph:

http://www.youtube.com/watch?v=TGWrsnPNfnM

3. PlySmlt2

a. Using PlySmlt2 for Solving Quadratic Equations

http://www.youtube.com/watch?v=NBRzvsJ6ros

b. Using PlySmlt2 to Solve a System of Equations

http://www.youtube.com/watch?v=Dyox4aNR0Zc

c. Using PlySmlt2 to Solve Polynomial Equations

http://www.youtube.com/watch?v=3CoNcxnVbtY

## Wednesday, 31 July 2013

### TI-84 TRIGO GRAPHS

## Saturday, 13 July 2013

### 5 THINGS WE NEED TO KNOW WHEN DRAWING A GRAPH :D

**1) SCALE**

Example :

Horizontal axis

8cm: 1 unit

Vertical axis :

2cm to 1 unit

*sometime the scale is given in the question*

_______________________________________________

**2) Accuracy**

eg.

Accuracy =1/2 square

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**3) FOR LINEAR**LAW

______________________________________________

**4) Size of graph**

The graph should fill up 2/3 of the graph paper

~ which means we have to choose the scale properly.

> For accuracy purpose

>> Less error

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**5) Table of values must be shown**

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