
05807762
j
2010f.00306
Kidron, Ivy
Dreyfus, Tommy
Justification enlightenment and combining constructions of knowledge.
Educ. Stud. Math. 74, No. 1, 7593 (2010).
2010
Springer Netherlands, Dordrecht
EN
C30
E20
D20
abstraction in context
combining constructions
constructing action
Davydov's method of ascent
enlightenment
epistemic actions
justification
knowledge construction
theory of mathematics education
doi:10.1007/s1064900992287
Summary: This case study deals with a solitary learner's process of mathematical justification during her investigation of bifurcation points in dynamic systems. Her motivation to justify the bifurcation points drove the learning process. Methodologically, our analysis used the nested epistemic actions model for abstraction in context. In previous work, we have shown that the learner's attempts at justification gave rise to several processes of knowledge construction, which develop in parallel and interact. In this paper, we analyze the interaction pattern of combining constructions and show that combining constructions indicate an enlightenment of the learner. This adds an analytic dimension to the nested epistemic actions model of abstraction in context.