Q&A - P1 Math

[SAHM_TAN]

24hr-mum:

re this qn in rulang pri p1 2010 sa1:


billy has some chickens and dogs. He has more chickens than dogs. the total number of legs both animals hve is 20. how many dogs does billy have?

the ans is 2 dogs.(and 6 chken)
but can the ans b 3 dogs (and 4 chken） also?

It's a tricky question. It includes science knowledge and command of English.

The science/general knowledge portion is that the child must know chicken has 2 legs and dog has 4 legs. The command of English portion is that he has more chickens than dogs.

It is true that there's 2 possible solutions but the sentence \"more chickens than dogs\" means that the teacher is looking for the first answer.

Not easy for the child becos this is SA1, so just 2 terms into primary school, the child must think logicially and have a good grasp of the English language, know division and number bonds well plus heuristics solving method.

But at the same time I'm impressed by the question. Maybe I'm mountain turtle. heehee

[SAHM_TAN]

libran269:

\"He has more chickens than dogs\" - Probably this could mean more in terms of legs too and not just heads. Then 6 Chicken=12 legs where as 4 CHicken =8 legs only.


Not sure if this is the explaination. :evil:

I think it's the qty of the animal and not the legs

I think the teachers want the students to infer from the total qty of legs. To an extent it does not matter if the total number of animals or legs are given, the process to solve it is the same. But by giving the number of legs instead of animals, it increases the difficulty abit. I find it's an interesting twist to the question.

[24hr-mum]

but if the ans is 3 dogs and 4 chickens, it is still MORE chkn than dogs, same as the case of 2 dog and 6 chkns leh

[SAHM_TAN]

oh ya, you got me there

[tweetyng1980]

SAHM_TAN:

Champion jie,


:faint: shhhhhh pls don't mention the L word :faint: An innocent remark and suddenly the responsiblity :faint: :rotflmao:

Hi sahm,

I have sent you a pm.

Tweety

[jor]

Took me some time to figure this out....DS P1 test..


http://i1213.photobucket.com/albums/cc461/jor2704/utf-8BSU1HMDEwMzMtMjAxMTEwMjYtMTgxNS5qcGc-2.jpg\">

[24hr-mum]

when i first coached my girl when she was p1, i also get very confused in her math. so much thinkg and steps involved. really got to practise together wif her to get the hang of modern math in singapore. wait till u try questions on mass and they ask u whc is heaviest…a lot of logic involved.

[pawzzy]

Hi SAHM_TAN,


can you PM me the booklist too pls?
thanks

[kiddies06]

Hi SAHM_Tan


Can i trouble you to PM me the booklist?

Thanks

[ddtan]

hi SAHM_TAN,

Can you also pm me list of assessments books (3 of them) too ?

Thanks.