THE STUDY OF ELEMEHT OF PROBABILITY THEORY IN PRIMARY SCHOOL
The article is devoted to the introduction in school of two important concepts of probability theory. "Random event" and the concept of probability. The aim of the article is to help teachers in studying the materials of the theory of probability and instill in students the primary skills of its application in solving various applied tasks. To facilitate perception, the material is given inductively and informally, based on natural situations. The program in mathematics for primary school (grades 5-9) provides for the study of the following questions from probability theory: elementary events, classical and geometric definitions of probabilities, probability of sum, difference, and product. Dependent and independent events. The solution of the simplest problems of probability theory and others. Further formalization of the basic concepts and theories is recommended to be carried out in the older (10-11 grades), where students will deepen their tasks based on the axim of probability theory.