The problem of the research is systematic approach and accessibility of the content of developing statistical skills for primary school pupils. The content of developing elements of statistical skills and probability theory integrates pupils’ mathematical skills, knowledge of the content of other subjects, general skills of cognition and their personal experience, therefore it is a general problem of primary education; A system of items intended for teaching elements of statistics and probability theory is valid and accessible for pupils provided it covers: - technical skills of statistics (an ability to read and represent data); - skills of mathematical operations (to calculate the mean, classify data, round off numbers, grasp elements of probability theory, determine percentage of a number); - cognitive skills of the level accessible to pupils (ability to word a problem, define a hypothesis, compile data to verify the hypothesis, analyse and interpret data, draw conclusions). The premises for successful development of primary school pupils’ statistical skills are as follows: - development of primary school teachers’ statistical skills in the framework of their academic and continued education; - establishment of the content of developing statistical skills corresponding to international standards in the general curricula of the primary school; - provision of teaching statistics and probability theory elements based in the skills acquired in the primary school in the... [to full text]