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Posted in A. Math, Pri Math, Sec Math

“Models (drawing of) destroyed my life.” – Sec 3 Math student

I laughed when he said it. But it’s a significant statement by my Sec 3 Math student made two days ago. It’s something I’ve been warning parents and students about, in my earlier article Beware the Critical Years in Math.

This Sec 3 Math tutee is from a top government secondary school in the west. Being mathematically intelligent, he had found it easy to use models-drawing to solve PSLE Math problems. But he had a hard time coping with Algebra in Sec 1 and Sec 2, and it’s affecting both his Math and A. Math performance now. This situation is not unique to him.

The best years of learning by your brain is probably from the time you were born to just before your teenagehood. Singaporeans around my age or older were taught to use algebraic equations to solve math problems at the PSLE back then. I remember using simultaneous equations in 1984 to solve today’s “guess & check” problems in the PSLE. Thus our algebraic skills were good and it helped us, even those who didn’t do well at the PSLE, in doing O-Level and A-Level Math.

Algebra is SO important for Math at O-level and A-level, yet our dear MOE chooses not to introduce it for problem-solving in today’s PSLE. I still don’t understand why.

It is true that some young students may not be able to understand Algebra, due to it being very abstract. But it is also true that some young students are not visually or spatially intelligent enough to draw, cut and move rectangles to solve problems. For eg, what has rectangles got to do with mass or age? (you know, those problems involving age relationships between persons or mass relationships between objects). Using rectangles or boxes to represent age or mass is just as ridiculous or abstract as using letters such as ‘x’ and ‘y’ as in algebra.

The least the MOE should do is to allow the teaching of BOTH methods to solve problems. Since those boxes start appearing in P2 or P3, algebraic expressions should also be introduced at P2 or P3, algebraic expansion in P4, algebraic factorisation in P5, and algebraic equations in P6. Sec 1 students can straightaway start on algebraic fractions etc. Do we lose anything by introducing algebra earlier in our math curriculum?

I’m glad I started my Sec 1 Algebra course for post-PSLE students in Nov and Dec last year (see Sec 1 Algebra Headstart Holiday Enrichment Programme for post-PSLE students). I think students still don’t realise how ill-prepared they are for math in sec school and JC. I dare say that if you are weak in your S1 and S2 algebra, you don’t have to take Math anymore.

Good Luck.

Rgds,

Ilyasa

(M.Ed., PGDE, B.Sc, ex-teacher, full-time tutor: 97860411)

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Posted in Learning & Teaching

Effective learning occurs when …..

Constructivist views of learning stress the active role of the learner in building understanding. Many learning theories based on cognitive psychology propose that “effective learning occurs when individuals construct their own understandings.” (p.3)

There are three kinds of constructivism: personal, social and information processing.

Personal constructivism refers to the learner’s internal mental state and transformations of understanding that arise within the individual.

Social constructivism refers to the learner’s building of knowledge in a social context, the making of meaning through shared experiences or interactions with others.

Information processing constructivism refers to the learner’s selecting, organising and integrating of new experiences with existing knowledge to build understanding.

Central to the constructivist view of learning is that there is an active participation of the learner, and a shift in focus from what the teacher may do to facilitate learning to “what the learner does as an active agent in the learning process.” (p.4)

Reference:

McInerny, D. M. & McInerny, V. (2006) Educational Psychology, Constructing Learning. NSW: Pearson Education.

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Posted in Pure Physics, Sec Science

Sec 4 Physics Reflections 03/02/13 – Current Electricity

Today, I asked them a few questions to improve their conceptual understanding of electricity:

(1) What is the difference between e.m.f and potential difference?

(2) What is the difference between resistance and resistivity?

(3) How do you derive the unit for resistivity?

(4) Why does the resistance of a metallic conductor increase when its temperature increases?

(5) Why is the ammeter connected in series to a resistor but the voltmeter is connected in parallel?

Some points to note:

(1) Resistance is NOT the gradient of the V-I graph.

(2) The I-V and V-I graphs of a conductor may be different and you’ll need to understand why and explain the difference.

Rgds,

Ilyasa, M.Ed, PGDE, ex-MOE Math and Physics teacher (hp: 97860411)

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Posted in A. Math, A. Math Tips

Sec 4 A. Math Reflections 02/02/13 – Higher Derivative

Today I taught them the Higher Derivatives, using displacement, velocity and acceleration as real-life examples. I chose not to introduce the 2nd derivative as a means to test whether a turning point is a maximum or minimum, as I preferred to do that when teaching the application of differentiation in tangents and normals at a point in a curve.

Points to note:

(1) students must not write the 2nd derivative as dy^2/dx^2;

(2) d^2y/dx^2 is not the same as (dy/dx)^2;

(3)  d^2y/dx^2 is the same as f”(x) or f^2(x);

(4) there may be product rule, quotient rule or chain rule involved when finding the higher derivatives.

Rgds,

Ilyasa, M.Ed, PGDE, ex-MOE Math and Physics teacher (hp: 97860411)

 

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Posted in A-Level, Junior College, Schools

Some news about JC rankings, postings, cut-off points in 2013 and A-Level results of 2012

I did post the list of JC cut-off points in 2012. However, u’d find that for 2013, the cut-off points and thus rankings will be slightly different. The official list from the MOE will be out next year, but here I will list some of my recent discoveries based on feedback from past students who enter JC this year.

(1) It seems that NYJC has outranked AJC in terms of cut-off points for their Science courses, as I know of students who applied to NYJC science as first choice but got posted to AJC instead.

(2) PJC may have outranked JJC in the same manner above, but I think they are still one above the other in the rankings by cut-off points.

(3) I will post more if I hear more.

But how about the rankings of JCs based on results? Well, for 2012, I have a credible source informing me that RI produced about 600 students with 4 As in their H2 subjects, while the second most successful JC, VJC, produced about 300 and HCI produced about 200. There is a large gap between RI and HCI at the A-levels and I believe I know why. I also feel that AJC has become less popular nowadays and I believe I know why. I’m not surprised VJC continues to do well and I believe I know the reason as I have had tutees from there too. But some of these things I shouldn’t say publicly, so if you need more info, sms me at 97860411.

At the end of the day, pls don’t be silly; it doesn’t matter much which JC you go to. It’s about yourself, get it? An A-Level cert from Yishun JC with four As is at all times superior to an A-Level cert from RI with three As. Many times, it’s easier to be a big fish in a small pond than to be a small fish in a big pond. Take my case in point; I was the top student of my primary school, an average student in RI and the bottom 5 students in my RJC class! Why? In RJC, I was placed in the ASEAN Scholars’ class (although I was perfectly Singaporean and still is) and one of my Singaporean classmates also turned out to be a President’s cum SAF Scholar; I was no match for their determination and time management skills! Fortunately, I was not the type that would let pressure get to me.

But not all of you are like that. Some of you have been top students all the while and your first failure in a test will demoralise you and your second failure will devastate you. Every year I have some tutees who are like that and I have to coach them slowly until they regain their confidence in themselves. So whether or not being in a top JC is good for you partly depends on your personality and mental strength. : )

Rgds,

Ilyasa, M.Ed, PGDE, BSc, ex-sch teacher (h/p: 97860411)

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@ BLK 644, BUKIT BATOK CENTRAL, #01-68. S(650644).

CALL 65694897 OR SMS 98530744 OR 97860411.

 

Posted in A-Level, H1 Economics, H2 Economics

JC 2/1 H2/H1 A-Level Economics Tuition for 2013

 

For our latest timetable, click here =>  jcbutton

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ORIGINAL POST (OUTDATED):

 

(1) JC2 H2 Economics: (Investment amt: $320 per month)

Sat 7.00 pm to 9.00 pm

(2) JC2 H1 Economics: (Investment amt: $320 per month)

Sun 7.00 pm to 9.00 pm;

(3) JC1 H2 Economics: (Investment amt: $320 per month)

(upon request)

(4) JC1 H1 Economics: (Investment amt: $320 per month)

(upon request)

 

DETAILS:

Location: Blk 627 Bukit Batok Central #07-640

Tutor(s): Mr Jay Lim, Master of International Management, ex-banker, experienced full-time tutor.

Content: A-Level micro and macro economics, directed readings, case studies, examples from real life and current affairs.

Focus: How to score in economics essays, must-have skills for handling economics case studies, metacognition in economics, thinking the economists’ way.

Class Size: 2-6 students

To register, kindly call, or send an sms to 97860411, indicating the Student Name, Subject and Level.

Related links:

(1) Economics Revision Package

(2) General Paper Resource & Practice Package

(3) General Paper Tuition

(4) JC H2/H1 Math Tuition

Posted in Pure Chemistry

Sec 4 Chemistry Tuition By Experienced Tutors

For our latest timetable, click here =>  secbutton

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ORIGINAL POST (OUTDATED):

Sec 4   Pure Chemistry:   (Investment amt: $180 per mth).

Mon 7.45 pm to 9.15 pm;

Sat 10.45 am to 12.15 pm;

Sun 12.30 pm to 2.00 pm;

Sun 2.15pm to 3.45 pm;

Tutor(s):

Mr Anthony H.: SMU undergrad who scored A for A-level Chemistry

Mr Tan J. D. : NTU undergrad, alumnus of Hwa Chong Institution, who scored A in A-level Chemistry

DETAILS:

Location: Blk 627 Bukit Batok Central #07-640

Average Class Size: 2-5 students

To register, kindly call or send an sms to 97860411, indicating the Student Name, the Subject and Level.

Posted in Polytechnics

List of ‘Top’ Courses of Polytechnics (2012) in Singapore by net Cut-Off ELR2B2 aggregate

SCIENCE PRACTICAL TRAINING

O-LEVEL PHYSICS PRACTICAL

O-LEVEL CHEMISTRY PRACTICAL

O-LEVEL BIOLOGY PRACTICAL


O-LEVEL SCIENCE (PHYSICS) PRACTICAL

O-LEVEL SCIENCE (CHEMISTRY) PRACTICAL

O-LEVEL SCIENCE (BIOLOGY) PRACTICAL


The table below shows the list of top or popular courses of Polytechnics in Singapore by net cut-off ELR2B2 aggregate. The net ELR2B2 aggregate score includes CCA Bonus Points.

Course Course Code Polytechnics 2012 JAE COP
International   Business N85 Ngee Ann 6
International   Business S36 Singapore 7
Biomedical   Science S98 Singapore 8
Biomedical   Science N59 Ngee Ann 9
Veterinary   Bioscience N90 Ngee Ann 9
Arts Business   Management N91 Ngee Ann 9
Banking &   Financial Services N53 Ngee Ann 9
Engineering   Science N93 Ngee Ann 9
Psychology   Studies N77 Ngee Ann 9
Psychology   Studies T48 Temasek 9
Molecular   Biotechnology N49 Ngee Ann 10
Tourism &   Resort Management N72 Ngee Ann 10
Mass   Communication N67 Ngee Ann 10
Biotechnology S72 Singapore 10
Pharmacy   Science N73 Ngee Ann 11
Accountancy N51 Ngee Ann 11
Business   Studies N45 Ngee Ann 11
Animation   & 3D Arts N92 Ngee Ann 11
Film, Sound   & Video N82 Ngee Ann 11
Banking &   Financial S76 Singapore 11
Business   Innovation and Design S34 Singapore 11
Creative   Writing for Television and New Media S41 Singapore 11
Biomedical   Science T27 Temasek 11
Veterinary   Technology T45 Temasek 11
Business &   Social Enterprise N79 Ngee Ann 12
Child   Psychology & Early Education N86 Ngee Ann 12
Advertising   & Public Relations N87 Ngee Ann 12
Chinese Media   & Communication N88 Ngee Ann 12
Applied   Chemistry with Pharmaceutical Science S64 Singapore 12
Accountancy S75 Singapore 12
Business   Administration S71 Singapore 12
Human resource   Management with Psychology S48 Singapore 12
Tourism &   Resort Management S55 Singapore 12
Aeromautical   Engineering S88 Singapore 12
Applied Drama   and Psychology S43 Singapore 12
Music &   Audio Technology S97 Singapore 12
Accounting   & Finance T02 Temasek 12
Aviation   Management Services T04 Temasek 12
Accountancy   & Finance C98 Nanyang 13
Chemical &   Biomolecular Engineering N56 Ngee Ann 13
Hotel &   Leisure Facilities Management N40 Ngee Ann 13
Business   Information Technology N61 Ngee Ann 13
Aerospace   Technology N65 Ngee Ann 13
Optometry N83 Ngee Ann 13
Chinese   Studies N70 Ngee Ann 13
Chemical   Engineering S70 Singapore 13
Perfumery and   Cosmetic Science S38 Singapore 13
Nutrition,   Health & Wellness S44 Singapore 13
Financial   Informatics S46 Singapore 13
Optometry S67 Singapore 13
Media and   Communication S86 Singapore 13
Biotechnology T31 Temasek 13
Communications   & Media Management T40 Temasek 13
Law &   Management T09 Temasek 13
Early   Childhood Studies T54 Temasek 13
Digital   Forensics T55 Temasek 13
Banking &   Financial Services C96 Nanyang 14
Dental Hygiene   & Therapy C72 Nanyang 14
Social   Sciences (Social Work) C47 Nanyang 14
Early   Childhood Education N66 Ngee Ann 14
Multimedia   & Animation N55 Ngee Ann 14
Food, Science   & Technology S47 Singapore 14
Architecture S66 Singapore 14
Hotel &   Leisure Facilities Management S95 Singapore 14
Integrated   Events & Projects Management S50 Singapore 14
Aerospace   Electronics S90 Singapore 14
Bioengineering S58 Singapore 14
Infocomm   Security Management S54 Singapore 14
Visual   Communication and Media Design S93 Singapore 14
Pharmaceutical   Science T25 Temasek 14
Aerospace   Engineering T51 Temasek 14
Business   Intelligience & Analytics T57 Temasek 14
Visual   Communication T24 Temasek 14
Medicinal   Chemistry C45 Nanyang 15
Pharmaceutical   Sciences C65 Nanyang 15
Mass Media   Management C93 Nanyang 15
Real Estate   Business N48 Ngee Ann 15
Sustainable   Urban Design & Engineering N89 Ngee Ann 15
Aerospace   Electronics N75 Ngee Ann 15
Audio-visual   Technology N76 Ngee Ann 15
Biomedical   Engineering N60 Ngee Ann 15
Financial   Information N81 Ngee Ann 15
Materials   Science S37 Singapore 15
Environmental   Management & Water Technology S52 Singapore 15
Engineering   with Business S42 Singapore 15
Business   Information Technology S82 Singapore 15
Digital   Animation S35 Singapore 15
Business/Logistics   & Operations Management/ Marketing T01 Temasek 15
Hospitality   & Tourism Management T08 Temasek 15
Apparel Design   & Merchandising T20 Temasek 15

Related Links:

(1) List of ‘Top’ Secondary Schools (2012) in Singapore by median PSLE aggregate score (2011)

(2) List of ‘Top’ Primary Schools (2012) based on GEP classes and Awards achieved.

(3) List of ‘Top’ Secondary School (2012) in Singapore by Cut-Off PSLE aggregate score (2011)

(4) List of Junior Colleges (JC) (2012) in Singapore by Cut-Off L1R5 aggregate score (including bonus points)

Ilyasa, M.Ed., PGDE, full-time tutor of Math & Physics (h/p: 97860411)

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By EX-MOE TEACHERS & EXPERIENCED TUTORS

@ BLK 644, BUKIT BATOK CENTRAL, #01-68. S(650644).

CALL 65694897 OR SMS 98530744 OR 97860411.

Posted in A-Level, IB, Junior College, Schools

List of Junior Colleges (JC) (2012) in Singapore by Cut-Off L1R5 aggregate score (including bonus points)

SCIENCE PRACTICAL TRAINING

H2 CHEMISTRY HANDS-ON PRACTICAL CRASH COURSE

H2 BIOLOGY HANDS-ON PRACTICAL CRASH COURSE

H2 PHYSICS HANDS-ON PRACTICAL CRASH COURSE

PRACTICAL CRASH COURSES (Mar, Jun, Sep and Oct)

MOCK EXAMS FOR SCIENCE PRACTICAL (Sep and Oct)

H2 PHYSICS PRACTICAL

H2 CHEMISTRY PRACTICAL

H2 BIOLOGY PRACTICAL


List of Junior Colleges (JC) (2013) in Singapore by Cut-Off L1R5 aggregate score (including bonus points)

The table below shows the net L1R5 aggregate of the lowest ranked students who were admitted to the Junior Colleges (JCs) through the 2012 Joint Admissions Exercise (JAE).

S/No Junior College Arts Science/IB
1 Hwa Chong Institution 3 3
2 Raffles Institution 3 3
3 Victoria JC 5 4
4 National JC 5 5
5 Anglo-Chinese School   (Independent) 5
6 Temasek JC 7 6
7 Anglo-Chinese JC 7 6
8 Anderson JC 10 8
9 Meridian JC 9 9
10 Nanyang JC 9 9
11 St. Andrew’s JC 9 9
12 Catholic JC 10 10
13 Serangoon JC 13 13
14 Tampines JC 13 14
15 Jurong JC 13 16
16 Pioneer JC 16 16
17 Innova JC 20 20
18 Yishun JC 20 20
19 St. Joseph’s   Institution

SCIENCE PRACTICAL TRAINING

H2 PHYSICS PRACTICAL

H2 CHEMISTRY PRACTICAL

H2 BIOLOGY PRACTICAL

 

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Posted in Pure Physics

Sec 4 Physics Reflections 27/01/13 – Applications of Electrostatics

I wanted to proceed to Current Electricity, but the students wanted more discussion on how to answer application questions on electrostatics.

So I supplied them with quite a number of such application questions, often with confusing diagrams. The key to answering such questions is to first draw the distribution of charges on the items in the diagram, and identify which objects are conductors and which are non-conductors. For the conductors, check whether they are insulated from the surroundings.

Key points to note:

(1) Only non-conductors can be charged by rubbing (why?)

(2) Electrons can flow into and out of only conductors, and only when the conductors are in contact with other conductors (why?)

(3) A charged object can attract a neutral conductor (why?) and a charged object can also attract a neutral non-conductor (why?)

(4) Upon contact with a highly charged object, a conductor behaves differently from a non-conductor (why?)

Rgds,

Ilyasa, M.Ed, PGDE, ex-MOE Math and Physics teacher (hp: 97860411)

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