Note: Wait until after you have completed a draft of your paper to assess sentence-level
Commas may seem insignificant in a piece of writing, but they have a larger impact than you might think. Colons are used to introduce lists, create anticipation, and to serve other purposes. Avoiding comma splices is a key to improving the flow of your paper. Sentence fragments not only detract from the sound of your paper, but they also are grammatically incorrect. Sentences should be kept to a reasonable length, and run-ons make your paper more challenging to understand. Semicolons connect two related ideas into a single sentence. Connecting paragraphs using smooth transitions is a way to help your reader follow your thoughts. After completing your draft, consider the finishing touches of word choice, commonly misspelled words, slang, parallelism, misplaced modifiers, and active vs. passive voice.
If you need additional advice, try the resources recommended by the Writing, Rhetoric, and Critical Studies Program (English 101 and 202), especially the Capital Community College Foundation's Guide to Grammar and Writing, which offers a variety of quizzes and online tutorials in sentence- and paragraph-level issues.