The goal of media literacy is not to ferret out one “right” interpretation that resides in the head of the teacher but rather to help students think through the “constructedness” of a media message and then substantiate their interpretation with evidence.
We should not make others think in the same way we do. For examples, teachers can have a point of view to a certain message. But if she asks students to express their idea about the message and provide evidence "why" they think that way, it can help others to get more insight into the message as every person thinks differently. Media literacy is more of an opinion that we can add evidence to prove our point.