The kind "concrete definition" realises sensual-reflective tasks by means of realisation of strategy "tests and mistakes".

Proceeding from identity of substantial sphere and the substantial component the kind "concrete definition" is in their structure, keeps increased (varied) content, transforms the known and introduced content, orders, reduces, unites of reconstruction of an image of a task in whatever its intermediate iteration. They arise as acts of understanding of conditions formulated in the text of a task.

Reductions of a plan of transformation to the performance as a separate stage.

In the structure of 1st level of integrity realising a sensual-reflective notice way of penetration in a problem the kind "concrete definition" recreate the data of the problem, its conditions and transforms them.