PRINCIPLES FOR SELECTION PROBLEMS STUDENT UNDERSTANDING
Carried out the analysis of the works of psychologists and teachers involved in reaching an understanding in teaching. Chosen themost common in their work types of tasks promoting understanding of abstract material by learners. Based to on the types of tasks considered authors are developed the principles of selection of tasks: the principle of consistency, of many aspects, comparison, unification, unity of content and methods of encoding the information provided. These principles aim to achieve different levels of understanding among students: understanding, recognition, understanding and hypothesis, understanding-unification. Determined the interrelation of chosen principles of selection tasks with the characteristics of understanding: completeness, clarity and depth. Described in details nhat characteristics of understanding in a large measure are achieved by using each principle that is provea by specific practical examples of domain «Mathematics».