Seminar for Parents on PSLE Mathematics

PSLE MathematicsYeap Ban Har

Marshall Cavendish Institute

[email protected]

www.moe.edu.sg/education/syllabuses

3 Things About Problem Solving in PSLE

2 Sections in PSLE with Challenging Problems

These tend to be the places where the challenging problem

solving are assessed.

5 Steps to help Your Child with Challenging Problems

2 Examples to Show the Five Steps

The speaker is demonstrating what an adult helping children does. What does an adult do to

help children manage their reading?

Solution:

2 fifths of 20-cent coins + 3 sevenths of 50-cent coins 39 coins

4 fifths of 20-cent coins + 6 sevenths of 50-cent coins 2 x 39 coins = 78 coins

1 fifth of 20-cent coins + 1 sevenths of 50-cent coins 94 – 78 = 16

5 fifths of 20-cent coins + 5 sevenths of 50-cent coins 5 x 16 = 80

2 sevenths of 50-cent coins 94 – 80 = 14

There are 14 2 x 7 = 49 fifty-cent coins.

There are 94 – 49 = 45 twenty-cent coins.

Sally had 49 x 50 cents + 45 x 20 cents or $33.50.

Answer:$33.50

94 – 2 x 39 = 94 – 78 = 14 + 2 = 16

94 – 2 x 39 = 94 – 78 = 14 + 2 = 16

94 – 2 x 39 = 94 – 78 = 14 + 2 = 16

?

94 – 2 x 39 = 94 – 78 = 14 + 2 = 16

?

94 – 2 x 39 = 94 – 78 = 14 + 2 = 16

39 – 2 x 16 = 39 – 32 = 7

How many 50-cent coins?How many 20-cent coins?

Solution:

(a)(3m + 6) cm

(b) length = 3 x 4 cm + 6 cm = 18 cm and width = 3 cm

area = 18 cm x 3 cm = 54 cm2

2 Common and 1 Unusual Challenging Problems

6 parts9 parts $120 16 parts

$30 4 parts

5 parts

$150 20 parts

He had $150 at first.

compare

837 – 648 = 837 – 637 – 11 = 200 – 11 = 189 1 third of the men + 1 third of the children 189

men

women

men + children 189 x 3 = 570 – 3 = 567

women 837 – 567 = 837 – 537 – 30 = 270

men 270 3 x 4 = 90 x 4 = 360

children 837 – 360 – 270 = 837 – 630 = 207

There were 207 children at first.

13𝑚+

13𝑐=189

𝑚+𝑐=189×3=567

837

= 837 – 567 = 270

…..

men

women

children

837 – 648 = 189

837 – 3 x 189 = 270

…..

8 13

2 3 4 5 6

13 x ? 13 x 21

21 x ? 21 x 34What is the

dimensions of the rectangle with the least number of

squares being 10?

See patterns, trends

MARSHALL CAVENDISH INSTITUTE’S WORKSHOP FOR PARENTS:

COACHING CHILDREN IN PRIMARY MATHEMATICS PROGRAMME

(BATCH 2)(END OF JUNE – SEPT 2012)

4-Session Programme for Parents / Tutors

Understand the Mathematics curriculum for different primary levels

Topics like Fractions, Geometry, Word Problem Solving and Algebra will be covered

Please contact [email protected]

Class size of about 30.