And the idea is you fast forward and good students start failing algebra all of the sudden, and start failing calculus all of the sudden, despite being smart, despite having good teachers, and it's usually because they have these Swiss cheese gaps that kept building throughout their foundation.
Si tirem endavant, de sobte els bons estudiants comencen a suspendre àlgebra, i a suspendre càlcul de sobte, encara que siguin llestos, i tinguin bons mestres. Sol ser perquè tenen forats com un formatge gruyère a la base de la seva formació. El nostre model