This is a pivotal event where Lorna replaces the ‘old’ with the ‘new’ (Bruner,
1996. p. 144) in her story of her algebraic understanding. What began with a powerless
statement, “I guessed, no idea” becomes, by the end of her story, a new guess,
“I’ve just added 3” which we pedagogues would conceptualise as a self-diagnosis.
This is an important storying of her self ‘before’ and ‘after’ her learning about algebra,
and we think offers insight into her potential metacognitive learning about her
own learning.