The linguistic J. L. Autin developed the idea of a difference between a statement that describes and the one that recommends, that is why he makes a distinction between two separate parts in a speech named constative and performative. Constative are sentences that describe if something is true or false and performative are words or sentences that denote an action.
When words are actions in themselves it is called a speech act, these actions include but not limited to ordering, promising, apologising, warning, sentencing, christening, marrying, etc.
Constative can be true or false and try to convey a message, while performative depends on context and reception. If both things are understood it is called felicity conditions and this should be: authoritative, understood, clear, and able to be executed. Even if the performative has its conditions and is clearly stated it does not mean that it is going to be followed, that is why there should be a consequence of breaking it.
Source: Glenney Boggs, C. (2013). Speech acts: constative and performative. Retrieved from Ted-Ed. Last visited June 1st, 2020. Available at: https://www.youtube.com/watch?time_continue=1&v=LgmpbXIGpcc&feature=emb_logo
Metacognitive Analysis
Nowadays using videos as a resource to learn any topic is very useful. There are students with visual learning style who remember what they see rather than what they hear. As teachers, we can use images, maps, graphs, and other visual representations, but in my opinion, the video is the best tool to use because students are acquainted with them.
In the case of this video, images are accompanied by clear messages, phrases, and information. It is really important to understand the content because we can cause student engagement in the video but not the learning on the topic. This is why we have to make a search before choosing the most appropriate video. We can find several ones related to the topic we want to deal with in the lesson but not all of them will help us to have a good result.
