the impact of using representations on acquisition of mathematical concepts among 6th graders in gaza strip

The aim of this study was to investigate the impact of using representations onacquisition of mathematical concepts among 6th graders in Gaza Strip. Two classes from Mustafa Hafez Elementary School in Khan Yunis Governorate were randomly chosen from sixth grade classes, where one of the classes was randomly assigned as an experimental group and the other as a control one. The number of students of every class was (40) students. The Quasi Experimental Design (pre-post test for two groups) was adopted. The study findings revealed that there are statistical significant differences between the scores mean of the experimental group and those of the control group in the concept acquisition test in favor of the experimental group.