Mathematical statistical analysis of attainment levels of primary left handed students based on pearson's conformity criteria

Quantitative changes in improving the effectiveness of teaching writing and developing skills elementary school students were summarized assessment using Student Pearson methods. Using χ ^2 test, which is often used statistical research, we introduce research hypotheses second, third final stages control experimental class participants with indicators first stage. At end work, it was proven that respondent's knowledge increased by 13.8% on average.