Before you begin, remember the first powerpoint you saw in English 1406. First, you were asked 'which sentence makes more sentence?' and then you were asked 'which sentence is correct?' Try not to lose sight of the distinction between meaning and correctness. Tangentially, try always to remember there can be a distinction between correctness and evaluation. Typically, something either is or is not correct. But the same thing, whether correct or not, can be any of the worst, a worse, a bad, a good, a better, or the best option.
Read this third. By now, you should be able to do the exercises on this sheet correctly.
A paragraph generally consists of 3 parts:
⁕ topic sentence
⁎ do not just mention the topic; control the idea
⁕ supporting sentences
⁕ concluding sentence (a reiteration or a transition of some kind).
Start here. Then either drop down one menu item on the Purdue OWL server, or go here.