Math meeting 08-02-2011-fractions, Proportions, inverse relations

Hi,

we talked about direct and inverse proportion.

http://lin-mathclub.blogspot.com/2011/07/direct-and-inverse-proportion.html

We also did part of the problems: we will continue to finish it next meeting

http://www.24houranswers.com/sat/3fract-prop-inverse.pdf

This  problem set:

1,We review cross multiplication

2, Children seem to forget the concept of the function y=f(x) 

Please review

http://www.regentsprep.org/Regents/math/ALGEBRA/AP3/indexAP3.htm

Next meeting:

08-04-2011 Am10:00-12:00

We will continue to finish and correct the problem set

Math meeting 5-22-11

Dear all,

We have finished all odd number  , some even number questions of worksheet and discussed the problem -solving strategy for "percent off sale price"

More study:

1, problem solving strategy for "percent off sale price"

2,percent-Word Problems

Please finish the rest problems we haven't done in the meeting .

Finish it and e-mail to me I will check for you.

Some children can't  attend  the meeting, please finish the worksheet at home and check the club blog.

Ya-Chi

Percent-word problem

1, state–coundown-8-2007(64)

If 200% of x is equal to 50% of y and x=16, what is the value of y?

2, state–coundown-53-2007(4%)

What percent of 5x is equal to 5/x

3, A giant gumball machine is 3/4 full. When 565 gumballs are removed and 832 are added, there are 2400 gumballs. How many gumballs does a full machine hold?(Solution)

4, A candy bar war seperated into equal pieces. If one person eats 1/4 of the pieces and another person eats 1/2 of the remaining pieces and there are six pieces left, into how many pieces was the candy bar seperated?(Solution)