Final answer:
The mother's quick reacquisition of geometry concepts is best described by the term 'relearning,' since she is learning this information again after previously being exposed to it in high school. This process is faster than the initial learning because the foundational knowledge and neural connections exist from the past learning experience.
Step-by-step explanation:
The concept related to the parent picking up on geometrical concepts quickly after studying them in high school is relearning. Relearning is a form of memory retrieval where previously learned information is learned again, often more quickly than the first time it was learned. This is because the foundational basis of the material is already somewhat familiar, and the neural connections made during the initial learning experience can be reactivated, facilitating a faster reacquisition of the knowledge.
In comparison, recall is retrieving information without cues, and recognition is identifying previously learned information when encountered again. Overlearning is a different concept where information is learned to the point that it can be recalled effortlessly at any time. The parent's experience, as described, best aligns with the notion of relearning.
Engaging in this relearning process, as the parent is doing by reading the textbook, strengthens memory retention and understanding. This ties into the educational strategies of rehearsing, creating customized simple problems, and connecting new concepts to those already known, which are all aimed at developing a deeper and more intuitive grasp of geometry. This emphasis on solidifying the foundational knowledge ensures that the parent is better prepared to help her child with more complex problems in the future.