Another Maths question.
- Thread starter ipoh-horfun
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1MinuteMan
Member
Re: Another Maths question.
First few replies - relevant.
The rest - OT.
Haha... great thread.
Anyway, I often get asked for help on maths questions like this by my nephew in Pri 4.
By using algebra and simultaneous equations, they are all actually pretty straight forward.
But the catch is that they are not yet thought these methods, and are not suppose to use them even if they know how.
Apparently, they have to figure out the answer through some form of "modelling" technique that I have no idea about.
So i end up just being able to verify his answers but can't help him with the working.
First few replies - relevant.
The rest - OT.
Haha... great thread.
Anyway, I often get asked for help on maths questions like this by my nephew in Pri 4.
By using algebra and simultaneous equations, they are all actually pretty straight forward.
But the catch is that they are not yet thought these methods, and are not suppose to use them even if they know how.
Apparently, they have to figure out the answer through some form of "modelling" technique that I have no idea about.
So i end up just being able to verify his answers but can't help him with the working.
Dinosaur hunter
Well-Known Member
Re: Another Maths question.
Yes, you are right they need to use modelling and reasoning to solve math problems. For this queston posted by Horfun below is the answer solved by reasoning.
Hint #1: no matter what the salary is, Hassan would always save 20% of his salary.
Hint #2: Salary increase by 10%.
Hint #3: Save $60 more after the salary increase. This $60 is proportional to the 10% increase in salary.
Statement #1: When salary increase by 10%, savings must also increase by 10%.
Statement #2: Savings after increment is still 20%. 10% increment in both salary and savings would give yo uthe following;
10% x 20% = 0.02 = 2%
This 2% is the extra $60 he saved after the salary increment.
1% = $30
Original salary is 100% = $3,000
New salary (10% more) = 1.1 x $3,000 = $3,300
1MinuteMan;762552 said:
Yes, you are right they need to use modelling and reasoning to solve math problems. For this queston posted by Horfun below is the answer solved by reasoning.
Hint #1: no matter what the salary is, Hassan would always save 20% of his salary.
Hint #2: Salary increase by 10%.
Hint #3: Save $60 more after the salary increase. This $60 is proportional to the 10% increase in salary.
Statement #1: When salary increase by 10%, savings must also increase by 10%.
Statement #2: Savings after increment is still 20%. 10% increment in both salary and savings would give yo uthe following;
10% x 20% = 0.02 = 2%
This 2% is the extra $60 he saved after the salary increment.
1% = $30
Original salary is 100% = $3,000
New salary (10% more) = 1.1 x $3,000 = $3,300
jasonmaxima
Well-Known Member
Re: Another Maths question.
Legit...PRC chinese tuition teachers dun come cheap.... S$40 / hour...
yes.... quite chio...
no comments on tabao'able, dapat'able, debit her account able, credit our account able etc etc.....
Legit...PRC chinese tuition teachers dun come cheap.... S$40 / hour...
yes.... quite chio...
no comments on tabao'able, dapat'able, debit her account able, credit our account able etc etc.....
jasonmaxima
Well-Known Member
Re: Another Maths question.
how to web cam?
wt_know;762614 said:make sure you don't naked in front of web cam hor ... hearsay mr. robert pays $100K
how to web cam?
Dinosaur hunter
Well-Known Member
Re: Another Maths question.
This one too difficult for primary school children because they do not have the foundation yet. The reason why moe set those difficult questions and yet cannot solve by using algebra because they want the children to think and look at the problem from different perspective. It do help in their problem solving skills.
DrK;762598 said:
This one too difficult for primary school children because they do not have the foundation yet. The reason why moe set those difficult questions and yet cannot solve by using algebra because they want the children to think and look at the problem from different perspective. It do help in their problem solving skills.
jasonmaxima
Well-Known Member
Re: Another Maths question.
what is the solution for for 'married man + prc mistress = ??'
wobbles;762639 said:
what is the solution for for 'married man + prc mistress = ??'
Dinosaur hunter
Well-Known Member
Re: Another Maths question.
Modelling is higher level of solving problem. This will compliment those complex formulae when solving complex problems.
In fact scientist would create a model of the problem. From there they will apply mathematical formulae to model the problem and thus find a solution. My humsum lecturer say one.
zorro;762609 said:
Modelling is higher level of solving problem. This will compliment those complex formulae when solving complex problems.
In fact scientist would create a model of the problem. From there they will apply mathematical formulae to model the problem and thus find a solution. My humsum lecturer say one.
