Do we need to use modelling to solve all math problem sums?

[Mr David]

Hi.

Nope, it is not necessarily to use model drawings to solve all the maths problems. For instance, if the number involved is fairly large, it will be difficult and tedious for the student to draw so many units of boxes. In fact, the use of model drawings is only one of the few techniques that the child has to know. Other techniques include:
1. Use Before & After
2. Look for Patterns
3. Work Backwards
4. Use Guess & Check etc.
Personally, I have always preferred the use of ratios over modelling. As for speed-related questions, it is advisable for the student to "draw out’’ the question, since a picture speaks a thousand words.

[cimman]

Modelling is just one of a vast number of heuristics that one uses to solve maths problems.

There is the working backwards heuristic, the guess and check, the logical reasoning, the drawing heuristic, the identify the pattern heuristic, the number of legs type of problems, and so on.

I think the question is phrased wrongly. I think it should be " For questions that uses modelling heuristics, is it necessary to use the modelling approach ?"
I think it depends. With some questions, you can solve it easily with algebra, with others, the modelling approach is better. So it is best to be familiar with both approaches and know when to use either method.

As for algebra, don’t believe the educators when they say algebra is not required. All those problems with squares, circle symbols are thinly disguised algebra problems. True, they don’t require advanced algebra knowledge, but it’s still basic algebra.

[junling91]

post was deleted.

[sub_evo76]

Hi junling,


Sorry, not too sure if you know but do you think JE1 PSLE Maths or Conceptmath is better for lower primary?

Thanks!

[jtparent]

Hi

would like to find out which is better for p5 math. will it b concept math / jei math?

pls share

tia

[SmallMedLarge]

I use this book


The Singapore Model Method for Learning Mathematics was available from the Marshall Cavendish (http://smartt.wordpress.com/page/2/)

The book outlines the very basic types of model drawing - suitable for P1 and P2. Upper primary, the children can use these basic models to solve more difficult sums.

Bought the book from Popular.

[2DMommy]

SmallMedLarge:

I use this book


The Singapore Model Method for Learning Mathematics was available from the Marshall Cavendish (http://smartt.wordpress.com/page/2/)

The book outlines the very basic types of model drawing - suitable for P1 and P2. Upper primary, the children can use these basic models to solve more difficult sums.

Bought the book from Popular.

Hi Maple leaf

Recently, i just attended a P1 math workshop organised by my son's school. They also recommend this book to us. At P1/P2 level, problem sums can be solved without model drawing but as they progress to P3/P4 or even P5/P6, they will find model drawing useful. It's quite easy to pick up, you may want to try learning them and teach your kid first?

[SmallMedLarge]

I have a p4 and p1 child…


While I agree that many problem sums can be solved without model drawing, I would say that drawing models is a good habit … start from P1. Learn basics and then can practice.

Then when they go to upper primary - they already know how to make use of basic models to solve problem sums which are more complex.

[LeeLeejlt]

Is this book still available at Popular, I went down the other day to the one at Bishan and could not find any.

[Blue Pearl]

Tks SmallMedLarge