Abstract This article explains the #Theory_of_Constraints (TOC) in plain language and asks a practical question: how can teachers help students understand why fixing the weakest point in a system often does more good than fixing everything at once? TOC, first set out by Eliyahu Goldratt in the 1980s, says that every system is held back by a small number of limiting factors, and that the smart move is to find that limit and work on it before anything else. The idea is simple t