P2 Math - General Discussion

[janet88]

plum-cake:

janet_lee88:

[quote=\"plum-cake\"]
Hi Janet,
I dont have Simon Eio's ones. But I have Li Fanglan. Fan books are good.
I am using topic by topic and models, ca, sa papaers by Li Fanglan.

Plum-cake,
My ks hubby bought the entire set of Fan-maths from Popular last year...bcos there was 25% discount :faint: I was asking him if there was a need to get all since there is no CA/SA.

Hi Janet,
I have sent u a PM.

ye I saw them . are they come with the CD/DVD? I saw some of his one with cds...mine is not with the cd.[/quote]no leh, didn't see any cd/dvd.

[plum-cake]

janet_lee88:

no leh, didn't see any cd/dvd.

One book comes with the cd I think must be the models. I saw them long time ago(Dec). but now popular is selling as a bundle.

[plum-cake]

How do you teach this type of Questions


The sum of two numbers is 25.
The difference between the two numbers is 5.
The two numbers are _____ and ____.


Star + 106 = 200
moon+ moon = 18
Star + moon = _____


The missing number is _______

[teh_oh]

plum-cake:

How do you teach this type of Questions


The sum of two numbers is 25.
The difference between the two numbers is 5.
The two numbers are _____ and ____.

Draw models:-
A[------------------------]) 25
B[------------]<__5__> )

B--> (25-5)/2=10
A-->10+5=15

[teh_oh]

plum-cake:

Star + 106 = 200
moon+ moon = 18
Star + moon = _____


The missing number is _______

1 moon = 18/2 = 9
1 star = 200-106 = 94
star + moon = 94+9 = 103


how to find 1 moon is straight forward.
how to find 1 star, i told my child to visualise the 'Star + 106 = 200' into a weighing scale. To find 'Star', he has to take the equivalent of '106' out of the '200' to balance the 'scale'.

[plum-cake]

teh_oh:

plum-cake:

Star + 106 = 200
moon+ moon = 18
Star + moon = _____


The missing number is _______

1 moon = 18/2 = 9
1 star = 200-106 = 94
star + moon = 94+9 = 103


how to find 1 moon is straight forward.
how to find 1 star, i told my child to visualise the 'Star + 106 = 200' into a weighing scale. To find 'Star', he has to take the equivalent of '106' out of the '200' to balance the 'scale'.

Thank you so much...
Thk you for the scale idea.

[teh_oh]

plum-cake:

teh_oh:

[quote=\"plum-cake\"]

Star + 106 = 200
moon+ moon = 18
Star + moon = _____


The missing number is _______

1 moon = 18/2 = 9
1 star = 200-106 = 94
star + moon = 94+9 = 103


how to find 1 moon is straight forward.
how to find 1 star, i told my child to visualise the 'Star + 106 = 200' into a weighing scale. To find 'Star', he has to take the equivalent of '106' out of the '200' to balance the 'scale'.

Thank you so much...
Thk you for the scale idea.[/quote]You are welcome. I learned alot from other parents over at the P3/P4 thread as well.

[janet88]

I am completely at a loss where upper pri math is concerned. Math at p5 is beyond my level of understanding. I just bought the fan math at the recommendation of a kind mummy. This heuristics thing can be tested in section A.

Hubby told me daughter at p1 was taught to calculate number of legs of ducks and cows :!: Am still ok with science but need to read up.

[BigDevil]

Taken from DD’s worksheet…


Study the number pattern and fill in the blanks.
<blank>, 100, 300, 500, <blank>, <blank>

Last 2 is obviously 700 and 900.
What about the first blank?? They are not taught negative numbers yet.

[Muffins]

Hi BigDevil, if they aren’t taught negative numbers yet, then one other patttern i can see is that from 100 to 300, the pattern is x × 2 + 100, and from 300 to 500, the pattern is x × 2 - 100


So, maybe the answer for the first one is x × 2 - 100 = 100

So 2x = 200

Therefore, x = 100

So maybe the pattern is, using my formula:

100, 100, 300, 500, 1100, 2100