Official format versus WeLearn strategy
Official format: Lexical Resource is one of the four official criteria for Task 2. It assesses range, precision and control — including collocation and word formation — not the number of unusual words a response contains.
WeLearn strategy: WeLearn teaches vocabulary by function, because a topic list cannot tell you which word a sentence needs. Each function opens with the same sentence written vaguely and precisely, so the gain is visible before any list appears.
