E Kids International's Conceptual Learning Awareness 1

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E Kids International's Conceptual Learning Awareness 1
Kieran Egant argues that it's in really, fully, deeply understanding something, anything, that we generate a true appreciation of knowledge itself.
""" A little learning is a dangerous thing. Drink deep, or taste not the Pierian Spring; There shallow draughts intoxicate the brain, and drinking largely sobers us again.""" -Alexander Pope
He proposes a concrete method for exposing children to deep, complete knowledge: every child is randomly assigned a single topic during their early school years - they continually study this topic throughout their entire educations (e.g. apples, mid-evil footwear, leaves, swordfish). They compile a vast portfolio on this randomly chosen topic. He attempts to negate some common criticisms (I thought: won't children become bored).
?Are there any studies investigating this idea?