I confirm that $\land$ usually binds stronger than $\lor$. Negation usually binds the stronest, i.e., it pertains only to the smallest following subformula. With respect to $\to$ and $\lor$, conventions may vary. I would parse $A\to B\lor C$ as $A\to (B\lor C)$. In any case, precise rules for parsing formulas should be described in the textbook or lecture notes.