You might be challenged by the teacher or by another student.
Argumentative writing is the act of forming reasons, making inductions, drawing conclusions, and applying them to the case in discussion; the operation of inferring propositions, not known or admitted as true, from facts or principles known, admitted, or proved to be true.
Once you have selected a topic you feel strongly about, you should make a list of points for both sides of the argument and pick a side. One of your first objectives in your essay will be to present both sides of your issue with an assessment of each.
They illustrate how your assertion is "better" (simpler or more explanatory) than others, including improved (i.e., more reliable or valid) methods that you used to accumulate the data (case) to be explained. The function of an argumentative essay is to show that your assertion (opinion, theory, hypothesis) about some phenomenon or phenomena is correct or more truthful than others'. The art of argumentation is not an easy skill to acquire.