The objective of this study was to find variables that are related to creativity and customary productivity dynamically. The subjects were 86 pupils of a secondary comprehensive school differentiated into age groups of 13, 14, 15, and 16 in southern Finland. Three tests and a matrix questionnaire were constructed for the variables. The data were obtained during school lesson time. The reliabilities and validities of the measures were examined in classic and novel ways. The overall coefficients were rather satisfactory. The expectation constructed for the relationships of the variables was partially corroborated. The least square fit indicated that variables followed a relationship expressed as an equation. The main variables that had the greatest interaction with creativity were reasoning, well-being, and cognitive organization, in that order. Customary productivity was joined with primitive and depressive affects most powerfully. Results suggest theoretical implications for changing the conservative nature of education and didactics. (Contains three tables, one figure, and two references.) (Author/SLD)