Selecting a tool environment for early programming training

The article outlines the main approaches to the selection of a tool environment and language tools for early programming training of children (from 6-7 years old) in the system of supplementary education. The influence of the features of the studied tool environments on the risk of developing skills that have a negative impact on the further vocational development of students in the field of programming is analyzed. Recommendations on the selection of a tool environment and a programming language that contribute to the directed formation of basic vocational skills and proper professional orientation of students in the field of programming are given. These recommendations, in particular, include: a variety of studied tools environments, assimilation the components of an imperative programming methodology, fixing students' attention on the need for the program design stage. It describes the practical application of the proposed recommendations in the introductory courses of the ITMO University Children and Youth Computer Centre (ITMO CYCC).