Posted in A. Math, Educational Advice, JC Math (H2/H1), Pri Math, Sec Math

Beware the critical years in math education …

Be aware that there are Mathematics gaps that need to be handled with care:

The following is derived from my eight years of teaching mathematics from
Primary 1 level to JC 2.

1st Gap – From Lower Primary to Upper Primary:

Somewhere in Primary Three problem sums that require the drawing of simple
models begin to appear and in some schools, this happens in P2 and even P1.
However, these problems tend to be simple enough so as not to cause problems for
students who don’t draw models. Generally, parents report their children doing
badly and losing interest in math in P4. This is because in P4, complex problem
sums begin to appear. It also coincides with the appearance of Decimals. Thus
students who have not mastered Fractions as well as simple models by the end of
P3 will find P4 a tough and demoralising year, with some probably staying away
from Math for the rest of their lives. However, in P4, Section C (problem sums)
still only take up about 20% of the marks, so pupils will still survive and
scoring above 75% is not a problem for the hardworking student who is not
careless.

However, this ecstasy is short-lived. In P5, Ratio, Average and
Percentages start to appear, on top of decimals and fractions, and only the
well-taught and discerning student will understand that they are all roughly the
same thing in different forms. To add to the agony, Section C in P5 takes up
about 45% of the total marks! It is a very big jump from P4; students can no
longer afford to just concentrate on their short questions in order to score a
Band 1. P5 is the year that separates the men from the boys (or the women from
the girls). In P6 or PSLE, Section C’s weightage is increased to about 55%,
wiping out all remaining students who have not mastered complex problem sums and
non-routine questions. That is NOT the bad news yet. The worse news is, the
joy of quite a number of students who scored A-star in math at PSLE is also
short-lived (I have encountered quite a number of students doing badly in
secondary math even though they scored A-stars or A’s at PSLE).

2nd Gap – From P6 to Sec 1:

Why is it that some students can score A-stars or A’s at the PSLE yet become average or even failures in math at the secondary level? The answer lies in two words – Algebra and presentation. It’s unfortunate that even at the upper primary level, students are not taught to form and solve equations using algebra, and they are also not taught how to present their answers in logical and coherent mathematical statements. Thus I find that many Sec 1 students provide math workings that will not earn full marks by ‘O’ level standards, and these habits are hard to change. Inability to use algebra properly also means inability to master important fundamentals such as algebraic expansion, factorisation and manipulation, resulting in poor performance at the upper secondary and JC levels.

Whenever I ask an upper secondary or JC student to state the main reason why he thinks he’s doing badly in math, the reason given is almost always that he had difficulty handling algebraic concepts and formulae while in Sec 1 and Sec 2. Thus parents and students need to comprehend fully the importance of mastering algebra in the lower secondary years.

3rd Gap – From Sec 2 to Sec 3:

Even students who perform well in Sec 1 and Sec 2 may suddenly suffer a drop in their math performance by the middle of Sec 3. This is largely due to the full impact of Additional Math and the pure sciences taking place and finally being felt by students around that time. A. Math can be a shock to some students who are not used to algebra-intensive questions with solutions that are  one-page long. Trigonometry in A. Math is also substantially more difficult to grasp than it’s counterpart in elementary Math.

4th Gap – From Sec 4 to JC 1:

H2 Math is more shocking to new JC students than A. Math is to new Sec 3 students. H2 Math is significantly more difficult than A. Math and from my experience, students who do not get an A1 for A. Math will have a hard time even in completing their JC tutorial worksheets. This is because on top of having to write out solutions that are often more than one page long, students have to familiarise themselves with a new graphical calculator. Many topics in H2 Math are also completely new to students, such as Complex Numbers, Series and Sequences and Probability Distributions, just to name a few. H2 Math is also difficult for most students because some parts of its topics are taken from the former subject Further Math, which was meant for only top students in Math. Thus it is not surprising to find many students failing in Math tests in their first year in junior college. From my experience, two topics in H2 Math that most JC students complain about are Complex Numbers and Vectors. This is largely because these topics speak their own language.

My main point is – Concerned parents must monitor their children’s
mathematical development extra closely when the kids go through the above
stages.

Good luck.

Best Regards,

Ilyasa

Related Links:

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ORIGINAL POST (OUTDATED):

 

 

I understand that there are students who don’t need long-term tuition but are weak in certain topics and they just need to consult a qualified and experienced tutor about these topics since exams are near. I’ve re-organised some of my tuition slots this June hols, so now I have a few free slots that can be used for ad hoc or short-term, individual consultations for the following levels and subjects:

PSLE Math, Sec 4 Math (E/A/IP/IGCSE), Sec 4 Physics, H2/H1 Math.

Fees per hr: JC – $80, Sec – $60, Pri – $50. (Pay per lesson)

Contact no: 97860411

Timing of lesson: Call or sms to arrange.

Location: Blk 627, Bukit Batok Central (near West Mall, 3 min walk from Bt Batok MRT or bus interchange).

Tutor: Mr Ilyasa, M.Ed (NIE), PGDE (NIE), BSc (NUS), A-Level (RJC); ex-sch teacher, full-time tutor (8 years) of PSLE, O and A Level Math and Physics.

Posted in A-Level, Educational Advice, JC Math (H2/H1), Personal

JC1 H2 Math reflections …

I had my first JC1 H2 Math tutee yesterday. True enough, I expect some JC1 students to start looking around for a tutor sometime in March, when most would have received their first test results at JC level.

The topics we covered were Binomial Series and APGP. Not surprisingly, the student had scored A1 for her Additional Math last year, but still struggling with beginning H2 Math topics. Didn’t I say this before, that H2 Math is significantly more difficult than A. Math? JC1 students must take their H2 Math very seriously, else I can guarantee that their Math results would mostly be S’s and U’s throughout the whole year.

For example, Binomial Series is much more difficult than the O-level Binomial Theorem. They may have the same fundamental formula, but the former has many more ‘tricks’ to look out for; ironically, it is this familiarity with the binomial expansion that deceives students into taking this topic lightly, as in the case with Inequalities. As for APGP, although it is not really very difficult, it is very new to most students who have never studied Series and Progressions before. In fact, the Summation sign itself is very alien to most new JC students.

To be good at Binomial Series and APGP, you first have to be very competent in Algebra and Indices. Additionally, you have to have this habit of writing out the first few terms and the nth term of an unfamiliar sequence or series when confronted with the difficult questions. But if you are good at being careless, you are finished.

Lastly, I have one advice for H2 Math students: Beware of the topics Vectors and Complex Numbers.  : )

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Posted in A-Level, A. Math, JC Math (H2/H1), Pure Chemistry, Pure Physics

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CALL 65694897 OR SMS 98530744 OR 97860411.

Posted in A-Level, JC Math (H2/H1)

JC 2 H2/H1 Math Reflections …

I was teaching the Normal Distribution last night, including using it to approximate the Binomial Distribution. As usual, students have difficulties with the following:

(a) knowing the difference between Var (X1 + X2 + X3) and Var (3X), and knowing WHEN the question refers to which;

(b) doing continuity correction for P(X> k) or P(X < k) when X is a discrete variable and there is a need to approximate its distribution to Normal.

I suggest students read their H2 Math textbook carefully and thoroughly, if their own JC notes are inadequate. As you know, in Math, mistakes done at the START of the working will most likely cost you ALL the marks even if your answer is one page long.  : )

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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.