PURPOSE: To easily learn programming by defining one part of the set of syntax elements as an icon at least.

CONSTITUTION: One part of a program is composed of icons such as a jump icon 10, label icon 20, print icon 100, condition icon 70, true block icon 70a, false block icon 70b and parameter icon 60, etc., at least. In this case, one of a condition sentence, repeated sentence, substitute sentence, branched sentence, branch destination label, sub routine branched sentence, sub routine label, random number generating sentence, parameter and operator contained in the set of constitutive elements is composed of the icon at least. Further, an identifier to discriminate the branch destination label, sub routine and parameter is formed by combining the first icon for mutually identify the classes of these branch destination label, sub routine label and parameter and a numerical value added to this first icon for mutually identifying the respective elements.