Dear S1-02

Please take a look at the following questions (and if you could, attempt them):

Q1:

If y is directly proportional to x and y = 8 and x = 5,

(a) find the equation connecting x and y

(b) sketch the graph representing the relationship

(c) find the value of y when x = 10

Q2:

The expenses, E, at a tea party, is directly proportional to the number of guests, N present. The expenses for 40 guests was found to be $320. Find

(a) the equation connecting E and N

(b) the expenses of 120 guests

(c) the number of guests if the expenses is $720

(d) the cost per person

### Revision for End-of-Year Exam (Maths)

Dear S1-02

With the end-of-year exam just a week away, most of you would have started revision.

We shall allocate at least one period (i.e. the last period to answer to enquiries).

To make the session really useful to you, we can do the following:

With the end-of-year exam just a week away, most of you would have started revision.

We shall allocate at least one period (i.e. the last period to answer to enquiries).

To make the session really useful to you, we can do the following:

- Go through the Exam Preparation Booklet - in particular the past year Test/ Exam papers.
- Identify question(s) that you think would be helpful for class discussion.
- You can post the question in the "Comment" of this post (e.g. 2012 Sec 1 Level Test 3 Q1).
- I'll sort out the questions for discussion at the end of the week.

### Survey: Flipped Classroom

To-date, the following have responded to the survey.

Aung Phone Naing |

Lee Jun Jie Cornelius |

Maximilian Oh Yangzhi |

Javier Ng |

Christian Zheng Hao |

The rest - Please complete by end of today (2013, Sep 23).

Click HERE to access the survey directly.

### More about POLYGONS...

Below are examples of

Regular polygons are those with all sides of the same length, and all angles of the same size.

Do you think there is a 'maximum' number of sides that a polygon can have?

What happens if n becomes very very huge... how does the polygon look like?

Click HERE to explore :)

Source of images: http://www.mathopenref.com/polygonconvex.html

**convex**polygons - some are regular, some are non-regular.Regular polygons are those with all sides of the same length, and all angles of the same size.

Do you think there is a 'maximum' number of sides that a polygon can have?

What happens if n becomes very very huge... how does the polygon look like?

Click HERE to explore :)

Source of images: http://www.mathopenref.com/polygonconvex.html

### Polygons: Study Notes - Answers and Presentation

Dear S1-02

As discussed in class, you may click HERE to check the answers to the Class Work (in the Study Notes).

Pay attention to how the question is approached and the working is presented:

Attempt the homework, and make reference to the above on how you should present your working.

Complete it for submission on next Monday 23 September 2013.

Note: Amendment to Q4(iii) It should be

As discussed in class, you may click HERE to check the answers to the Class Work (in the Study Notes).

Pay attention to how the question is approached and the working is presented:

- When reading the question, circle key words that will help you to decide which formula to use
*or*which type of angles need to be dealt with first. - It is always a good habit to begin the working with the formula that you are going to use. It helps you to focus on what you want to find.

**Homework**Attempt the homework, and make reference to the above on how you should present your working.

Complete it for submission on next Monday 23 September 2013.

Note: Amendment to Q4(iii) It should be

**angle****BCY**instead of angle BYC### Polygons: A summary of Quadrilaterals

1. You may read more about the various types of quadrilaterals at

http://www.onlinemathlearning.com/quadrilateral-properties.html

2. Attempt this quiz to check well well you know these quadrilaterals

http://www.onlinemathlearning.com/quadrilateral-properties.html

http://www.onlinemathlearning.com/quadrilateral-properties.html

2. Attempt this quiz to check well well you know these quadrilaterals

http://www.onlinemathlearning.com/quadrilateral-properties.html

*More about diagonals:*
A

(source: http://en.wikipedia.org/wiki/Diagonal)

Read more about

**diagonal**is a line joining two nonconsecutive vertices of a polygon or polyhedron.(source: http://en.wikipedia.org/wiki/Diagonal)

Read more about

*diagonals*at the source.### Face-to-Face Consultation Sessions before EOY Exam

With the End-of-Year Exam commencing in Week 3, you should be moving into the revision mode.

Consultation sessions will therefore kick in instead of the Support Programme these 2 weeks.

You can see me for face-to-face consultation at the following timings in the school:

- Friday (20 Sep) 12.45 pm to 2 pm
- Tuesday (24 Sep) 2 pm to 4 pm
- Thursday (26 Sep) 2 pm to 4 pm
- Friday (27 Sep) 1 pm to 4 pm

In addition, from now until the Maths exam, you can also could reach me via various online channels (e.g. Email, Facebook, GChat/Hangout) if you need any help/ clarification of in work.

### Basic Geometry: Question 3

There are several ways to solve the problems.

Below is one way.

Compare this working with Javier's working.

What difference do you notice?

### Basic Geometry: Question 1

*One important point to note:*

*While it is not written in the diagram, we assumed that BOC is a straight line.*

### Basic Geometry (2)

The following video clip suggested one way to find the unknowns in the diagram.

Look at how the problem is approached, and how the working (and reasons) are presented.

Do you have alternative means to solve the problem?

Look at how the problem is approached, and how the working (and reasons) are presented.

Do you have alternative means to solve the problem?

### Basic Geometry (1)

Watch the following video clips before attempting the worksheet.

Look out for the presentation of working, and how the problem is approached.

Look out for the presentation of working, and how the problem is approached.

**Video 1****Video 2**### Number Patterns - Your Assigned Task

Go through the Handout (p1 & p2).

"Watch" how Question 1 is presented, pay attention to the working.

In pair, discuss how you would approach the question assigned.

Present your working clearly (using dark ink).

Take a picture of the solution and post it in the Maths blog.

Refer to the handout for "posting" instructions.

"Watch" how Question 1 is presented, pay attention to the working.

In pair, discuss how you would approach the question assigned.

Present your working clearly (using dark ink).

Take a picture of the solution and post it in the Maths blog.

Refer to the handout for "posting" instructions.

### Number Patterns Question 1

**(A) Generalising...**

**(B) Finding the 10th line...**

**(C) Finding the value of**

*n*...

**(D) Calculating square of 199 using the pattern...**

### (On Your Own) Number Pattern Exercise: Extending Question 8

Click HERE to check your answers.

*Note: As mentioned in class, there are several ways to get the answer. Your method might be shorter or different from what's being put up here.*

### Functions & Linear Graphs: Summary

Suggest what other information can we add to improve this summary sheet...

*Summary done by Ryan Hong*

### Remedial Handout for Chap 8: Linear Equation of Graphs (Calculation) & Graphing

Dear S1-02

A handout, "Support Programme 2013 Term 3 Week 10" on Functions and Linear Graphs will be given to all.

What do you do with the handout:

For those who scored less than 20 out of 25 marks of Homework 8D will have to complete this Handout and

You are strongly encouraged to attempt the paper and see me to clarify your doubts before submitting te work on Wednesday.

Those who submitted Homework 8D and scored 20 marks and above.

A handout, "Support Programme 2013 Term 3 Week 10" on Functions and Linear Graphs will be given to all.

What do you do with the handout:

**Who needs to do and submit:**For those who scored less than 20 out of 25 marks of Homework 8D will have to complete this Handout and

**submit by Wednesday (4 September 2013)**- in the "Class Tray" (that I'll place in the class to collect homework).You are strongly encouraged to attempt the paper and see me to clarify your doubts before submitting te work on Wednesday.

**Who need not to submit:**Those who submitted Homework 8D and scored 20 marks and above.

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