alternative way teaching percentage (reflection paper)

title: Solving Problems with The Percentage Bar
by Frans van Galen, Dolly van Eerde
 

it's been a while, i am not writing anything here. hereby, here i share an interesting reflection paper about percentage.i hope it will give some help.

source: http://www.oncalc.com

This paper in general informs the reader how the result of percentage lesson should be concerned. At first, Frans and Dolly gave result of their study in grade 7 in understanding percentage. Those result showed that most of the students tend do make some error when doing discount problem despite it should be easy to be solved. Later on, they show other result when percentage bar help those students solving the percentage problems. Furthermore, it is also explained how percentage bar help students to understand the problem. 
At the introduction part, the writer illustrated that from the results of their study in fourteen 7^th graders. First, most of the students failed to find the correct answer. To be precise only 4 out of 14 that can solve the problem. this paper present the alternative way to teach percentage using percentage bar, or percentage table.


the percentage bar used as a tool to bridging the percentage and the amount its present. it can be seen as the picture below

the percentage bar can be divided into 2, so the students can get 50%, or they can divide into 10%, or even 1%. when the students can use this bar effectively, they will not have any difficulties in solving percentage problems.

for the further inquiry about this method of teaching percentage please read by downloading  the actual paper in http://jims-b.org/