Saturday, March 27, 2010

(29th march) next week's material (form 1)















to pmr dept
form 1
teach them new chapter (percentage)
distribute books to them, later i will ask jian wen to help us print the notes
1-use around 10 mins to them something on increasing and decreasing,
form example u can teach them something like:
20 % of 59 is?
57% of 523 is?
30% of x is 68 then x is ?
this are just some basic question, u can pick some examples from the geetha book

2- use another 10 mins to teach them this formulae, which is "universal" u can use in any increase and decrease question..
" (historical cost (original price) ~ selling price) / historical price then the whole thing times 100%"
examples:
the shoe above, cost u 1000 bucks, later u sold it to jian wen for 1500, what is the percentage of increase in price?
the italic and bold word u can also change it to the following
-percentage of profit
-percentage of discount(but in this case the price goes up so no discount, if discount, the phrase can replaced as LOSS) and so on...

try to teach them more question on this few sub topic..
another exercise "siber practise" the book we always use to give students exercise



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