Examination and Comparison of the Amount of Mathematical Errors Between the Students with Learning Disorders and Normal ones at Sixth Grade in Lordegan City

The purpose of this study was examination and comparison of the amount of mathematical errors between the students with learning disorders and normal ones at sixth grade in Lordegan City. The study was a kind of applied with descriptive- analytic survey. The statistical population were all students at sixth grade in Lordegan City (2495 normal students and 238 with learning disorders) in 1394-95. Simple random sampling was used and 50 normal students along with 40students with learning disorders were chosen to do the study. The instruments were a couple of researcher made worksheet and mathematic learning disorders questionnaire. Validity of the instruments were confirmed by 5 mental tests and learning disorders specialists. The reliability with Cronbach alpha was 0.82. T test and variance analysis were used to inferential analysis. Findings showed that there is difference between students with learning disorders and normal ones at problem solving scale and distinction of shape, 4 operation, money and time at mathematical errors. There was no significant difference between students with mathematical learning disorder (whole and subscales) with attention to demographic traits(sex, average and parental education).