. . . – , . . . The article outlines the results of the research of the mutual understanding culture in communication of senior preschoolers with their age equals. – - , . . . , , - , . . , , , . . , . , , ( , , , .). , . , . , , . - , , , « , , , »1. . . , . . . . , . , . . . , , , , – . , - . . , . . . , - . , . ( , , ), , 2 - , , 3 - . - - . , , , - . 149 - , : - , , . , . . - , ). , , - , , . , , . , - , , , ). , . - , . , - , ( ). , , 70 14, 85 . - . - - , . , - . 2, - . . - 2 - . 1, . - , , . - . , . - - , 150 , , . - 67% - , ( , ( ). , , , ). - . . - 80% . - , , , - ( . - , , ). , - : , , - , , , . . (25%), (59%) (16%) , . - . - . . - - : , , , - . - , , - , - 151 , - . . , . , , - . . . 1 2 3 . . , 2001. . 121. . . . .: 2000. . . . : : . … . . . , 2001. . . . – , . . , ,– . . The article dwells upon one of the most complicated methodic tasks to be solved by the teacher – looking for the ways and techniques for students’ errors prevention. Provocative tasks are considered as a tool for students’ errors prevention in mathematics training , . , , , . . , .« . , - , , . 152 – -