Saturday, 26 September 2015

Data Handling: Enhanced Visual Representations for Effective Communication

During this "hazy" period, the PSI values are closely tracked to inform the public of the air quality. In addition, by studying trends (together with other related elements), it enables experts to make recommendation to the public, and even decisions.

Have you visited the SGHaze Explained website?
Apart from giving facts and reporting on the situation, and to provide guidelines and advice to the public how to cope with the 'hazy' days, the website uses 2 interesting visual representations to present information to the public.

Go to the website and explore the representations shown below.

Did you notice how much more data that the enhanced representations can present compared to similar representations printed on paper?

Point to Ponder: 
1. Do you notice that the types of visuals chosen are closely linked to the context?

  • Image 1: While we can just list/ tabulate the information in a table...
    • How has this type of visual enhanced the effectiveness of information communication?
    • What are the various types of information that the visual aims to 'deliver' to the public?
    • Apart from presenting so much information, in particular, what's happening at each 'hot spot', what other possible underlying objective(s) does this visual try to communicate to the public?
  • Image 2: Similarly, information could be presented in a table (click HERE to see tabulated data on 24 & 25 Sep from NEA website). 
    • Which is a more appealing mode of presentation? Why?
    • Instead of using individual graphs for each zone in Singapore, what do you is the purpose of 'combining' the graphs into one? (omit the thought of 'saving' space)

2. We notice that each representation contains very rich information.
  • What is the purpose of providing these additional information to the public? 
  • How are these data going to be useful to the public (community at large)? What are the different groups of 

Share your thoughts in Comments.

Image 1: Tracking Fires in South East Asia

Image 2: Tracking PSI values

Friday, 25 September 2015

Revision: Algebra

Dear S1-01

On Monday's lesson, we were revising Algebra (in class) and had revisited the following:
  • algebraic manipulation (adding & subtracting terms; multiplying & dividing terms)
  • expansion [remember: insert bracket to 'protect' the terms]
  • factorisation
    • basic rule: identify any common factor
    • look out for special products, especially (a+b)(a-b)
    • check if there's any 'square terms' (e.g. x^2) - likely to apply 'cross method'
You are strongly encouraged to view the clips on ALGEBRA in the Youtube channel as a revision.

Work for Submission
According to the revision, you should work on SST's 2014 EOY Exam Paper 2 and submit it on Monday.

As advised during lesson, before doing the paper - look through the feedback written in the marked assignments (including revision papers) so that you will not make similar error(s) when doing similar questions subsequently.

I will remain contactable via email or GChat/Hangout in the day - let me know should you need any assistance or help as you revise your work.

Saturday, 19 September 2015

Number Patterns: Pascal Triangle

In Sec 1, we may associate the Pascal Triangle with the topic, Number Patterns.

Watch the clip to "see" beyond!
Something that you can relate to as you move on in the next two years... Binomial Theorem.


Wednesday, 9 September 2015

[Revision] Geometrical Construction (2009/N/P1/Q12)

Revision: Y2009 GCE N Level Exam P1 Q12
[Note: You attempted this question at the timed-revision session on 1 Sep at Tutorial Room 1]
Click at the slides to see the step-by-step guide to complete this question

Monday, 7 September 2015

Term 4 Week 1: Timed Revision #2

Dear S1-01

A Timed-Revision is scheduled on Term 4 Week 1 Wednesday (16 Sep) 12.45 pm to 2 pm.
This is in preparation for the End-of-Year Exam.

Topic tested: ALL topics that you learnt since January.

You will do all questions on the Question booklet.
Things to bring:
1. Calculator
2. Construction Set
3. Graph Paper

You should be able to complete the paper in 60 min. Maximum time given: 90 minutes.
You may leave upon completion of the paper.

Your last period ends at 12.45 pm in odd week Wednesday. The paper will start immediately after your last period of the day.
Please make sure you take a heavier breakfast.