The effect of reading comprehension skill on students' academic achievement in mathematics lesson at the second stage of primary school

The aim of this research is to determine the effect of reading comprehension skill on the academicachievement in mathematics at the second stage of Primary School. Thus, this research is based on survey design. The population of research consists of students at the 6th grade at 71 state primary schools in Malatya. Its sample includes 300 students from schools at different socio-economical areas by selected using ?systematic random (stratified)? sampling method. Reading Comprehension Test and Mathematics Achievement Test were used for getting data for the research. SPSS 16.0 software programme was used for analysing the data. Pearson product-moment correlation coefficient was estimated in order to understand the relation between the skill of ?reading comprehension? and ? the mathematical achievement?. Furthermore, Frequency (f), Percentage (%), and t-test (t), the One-Way Analysis of Variance (ANOVA), Mann-Whitney U test, Kruskall Wallis H test (depending on the homogenity of the data) were used.At the end of the research, the results below were found: there was nearly high relation between the reading comprehension and mathematics achievement scores (r= 0,68); there was not a clear difference between reading comprehension scores according to gender variable and frequency of reading a book, and there was not a clear difference between mathematics achievement scores according to gender variable and frequency of reading a book. There was a clear difference between reading comprehension scores according to whether they have difficulty or not and the school?s socio-economical features, and there was a clear difference between mathematics achievement scores according to whether they have had difficulty of understanding what they read and the school?s socio-economical features.There have been variable suggestions from the results of the research.Key Words: Reading comprehension, Mathematics achievement, Summative evaluation, 6th grade of the Primary School.