Q&A - PSLE Math

[tianzhu]

Brenda10:

Hi Tianzhu


Thank you.

Now dd is focus on learning the new topics of speed. Hopefully she is able to grasp some basis concept when attempt to speed question.

Hi Brenda10

You're welcome.

Enjoy the journey on Speed.

Best wishes

[tianzhu]

Hi


Two interesting questions from onsponge.

1) A group of painters is painting the classrooms. If they paint 6 classrooms per day, they will be able to complete 1 day ahead of schedule. If they paint 4 classrooms per day, they will be 2 days behind schedule. How many classrooms are there? (P6 Kong Hwa 2010 CA1 Q9)

2) 7 apples cost $4.00
9 oranges cost $11.00
James bought a total of 1000 apples and oranges for $999.00
How many apples and how many oranges did he buy ?( Pei Hwa CA1 P6 2010 Q18)

Best wishes

[Muffins]

Hi Tianzhu,


this is the working for Q1 (i think!)

Assuming that the no. of days if they want to be on time is "y":

6 x (y-1) = 4 x (y+2)

6y – 6 = 4y + 8

2y = 14

y = 7

7 – 1 = 6

6 x 6 = 36

[tianzhu]

Hi Muffins


Thank you, your solution will offer an alternative for future PSLE students.

Merry Christmas and a Happy New Year.

Best wishes

[Belle2011]

Hello,

I need some help on

There were 32 tourists on a bus. 2/5 of the men and 1/4 of the women were from Singapore. The total number of tourists who came from Singapore was 11. How many men came from Singapore?

Model ans given: 8.

Thanks a lot.

[Brenda10]

Belle2011:

Hello,

I need some help on

There were 32 tourists on a bus. 2/5 of the men and 1/4 of the women were from Singapore. The total number of tourists who came from Singapore was 11. How many men came from Singapore?

Model ans given: 8.

Thanks a lot.

Hi, you may want to refer the following link for solution.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=280&postdays=0&postorder=asc&start=2180

[Belle2011]

Brenda10:

Belle2011:

Hello,

I need some help on

There were 32 tourists on a bus. 2/5 of the men and 1/4 of the women were from Singapore. The total number of tourists who came from Singapore was 11. How many men came from Singapore?

Model ans given: 8.

Thanks a lot.

Hi, you may want to refer the following link for solution.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=280&postdays=0&postorder=asc&start=2180

Thanks.

[Hifive]

Hi


Just to check with parents and students here : is it ok to use algebra to do problem solving questions at P6 level ?
I've posted this question in the PSLE 2011 thread but thought I would post it here since some parents/students here have already tried doing the 2010 top school papers. One parent has advised to use model method.

Pls advise because all along I thought schools are using the model method / unit transfer method (actually how many methods are there :oops: )?

Thanks in advance.

[tianzhu]

Hi


Algebraic expressions in one variable is covered under the topic of Algebra in P6.
http://www.moe.gov.sg/education/syllabuses/sciences/files/maths-primary-2007.pdf

The question is after learning Algebra in P6, is a student fully equipped with the skills to cope with word problems using Algebra (taught within syllabus)?

Without going beyond the syllabus, can a student use Algebra effectively to solve word problems ?

Do students need to accelerate their learning of Algebra through external courses (tuition/enrichments) or parents to enable them to use Algebra to solve word problems ?

Every child is unique, they have different leaning abilities. Not every child has the luxury of additional tuition.

Let the child decides, the golden rule is to use whichever method a child is comfortable with to solve a question.

Here’s a reply from MOE on Different Approaches Taught for Mathematics Techniques
http://www.moe.gov.sg/media/forum/2007/20070217.htm

Merry Christmas and a Happy New Year.

Best wishes

[Hifive]

Hello tianzhu


Many thanks for your reply to my query and the MOE website link you have indicated.

Wishing you and your family a MERRY CHRISTMAS AND A HAPPY NEW YEAR!