Wednesday, 25 September 2013

Tuesday, 24 September 2013

Monday, 23 September 2013

Revision for End-of-Year Exam (Maths)

Dear S1-09

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:
  1. Go through the Exam Preparation Booklet - in particular the past year Test/ Exam papers.
  2. Identify question(s) that you think would be helpful for class discussion.
  3. You can post the question in the "Comment" of this post (e.g. 2012 Sec 1 Level Test 3 Q1).
  4. 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.

Daris Ker Ann Lee
Johanna Lim Ziyun
Nikisha Tan-Mishra
Axel Tan Jing Zhi
Benjamin Koh Zhao Hui
Chua Shuei Ray Eusebius
Donovan Neo Jia Jie
Ho jia wei
Javier Tay
Kang Shiqiang
Kiang Jia Ming Kenneth
Lim Kai Xiang Sean
Ng Wei Jie

The rest - Please complete by end of today (2013, Sep 23).
Click HERE to access the survey directly.

Saturday, 21 September 2013

More about POLYGONS...

Below are examples of 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:

Friday, 20 September 2013

Polygons: Study Notes - Answers and Presentation

Dear S1-09

As discussed in class yesterday, 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.

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: Summary of Quadrilaterals

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

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

Polygons: Diagonals

diagonal is a line joining two nonconsecutive vertices of a polygon or polyhedron
Read more about diagonals at the source.

Thursday, 19 September 2013

Polygons: Who am I?

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. 

Tuesday, 17 September 2013

Basic Geometry: Question 3

Below is one way of solving the Question 3

Read the next post, which Li Ying has represented two other ways of solving the same problem.
Do take a closer look at how she stated the reasons beside the working :)

On another note, could you highlight one angle-labelling 'error' in the first method she propose?

Basic Geometry Homework Question 3

Basic Geometry: Question 2

Compare the above working with the one below, what difference do you notice?

  • Do you spot any error (in any part of the above working?
  • How we can improve the presentation of the working, in particular, how the 'reasons' are stated in the working?

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.

Monday, 16 September 2013

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.

Video 1

Video 2

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?


Wednesday, 4 September 2013

Number Pattern Question 3 (by Dawn)

Number Pattern Question 3 (By Kenneth Mah)

Number Pattern Question 4 (By Nikisha) :3

Number Pattern Question 3 (By Sean Lim)

Number Pattern Question 4 (By Daris Ker Ann Lee (01))

Number Pattern Question 5 (by Donovan Neo)

Number Pattern Question 5_ (by Benjamin)

Number Pattern Question 5_ (by Darie Chan Rong Zhi)

Number Pattern Question 7 by Kiang Jia Ming Kenneth

Part D was the difficult question as I was trying to find a solution that does not require trial and error. I filled the original piece with workings trying to solve it and kept trying different ways to manipulate x and y. In the end I realised that the square root of multiplying both of them together must be in between both of the numbers, and I can find out the exact numbers since one number is just larger than the other by 1.

Number Pattern Question 6_ by kang shiqiang

Number Pattern Question 4_ by Kok Li Ying

Number Pattern Question 3 by Axel

Number Pattern Question 6_ by Ho Jia Wei

Number Pattern Question 6_ by Johanna Lim Ziyun

Number pattern 4_by chong yong liang

Number Patterns

You are issued with the set of handouts, which include a set of exercises (Q1 to Q8).

Refer to the following post to learn how to solve Question 1, in particular, how the steps are being presented.

Try Question 2 to Question 8 on your own first - we'll discuss them when school reopens.

Meanwhile, each of you is assigned a Question to show how you approach the question.
(Refer to the Handout given).
Complete it and post it in the Maths blog according to the instructions printed on the handout.
To be posted in the blog by 4 September 2013 (Wednesday) 2359h

For Question 8, here's an extension to the question:

After you have attempted Question 8, you may 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.

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...

Tuesday, 3 September 2013

Functions and Linear Graphs: Summary

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

Summary done by Shiqiang, with Johanna's inputs.

Monday, 2 September 2013

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

Dear S1-09

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:
  1. Johanna
  2. Li Ying
  3. Darie Chan
  4. Donovan

You may use this handout as a practice. The solution has been uploaded in the GoogleSite, under "Support Programme".