I think of my paragraph arguments as coming together to form an extended contention, rather than as a list of things I will discuss.
Basically, I split the prompt into a whole bunch of smaller, open-ended questions - ie, how do i define this word or facet; do i agree with this word or facet; if yes, why and how; if no, why not and how not; if yes, do i go further than it; if no, what is my alternative; if partly yes and partly no, what is my balance?
Then I go through and logically answer each of them.
If you weave those answers together, you actually get an extended, detailed contention that is usually 2-3 sentences and which forms the body of the entire introduction; and, if your paragraphs are logical, they will most times just be stepping through these answers in sections, so you have signposted their topics.