<p>I believe the part about Improving Paragraphs is the easiest of the Writing Section.
Begin by answering the choices, read parts of the essay as needed for the questions. Some people would like to skim the essay first for general meaning but that's not really necessary.
Really, if you don't follow this technique it wouldn't matter, Just choose one that you are most comfortable with.
There are different types of questions that you will be asked to answer in Improving Paragraphs. Many of which are related to the improving sentences, like Comma Splice, Fused or Run on sentence and Dangling Modifiers. Other Questions ask about the essay in general for main idea, sentences to be deleted, or even moved somewhere else in the Essay. **
Coherent essays in general have orders: **Chronological Orders, Spatial Order, Order of Importance, Comparison and Contrast Order, and Descriptive Order, so most questions that you'll be asked to delete or move sentences you'll have to check if that sentence you're being asked to remove/delete is relevant and following the order or not. Sometimes you'll be asked to check and revise transition words between sentences, this linkage makes the essay coherent. Some Transitions are like:
consequently, clearly, furthermore, additionally, in addition, moreover, furthermore, also, in fact, however, on the other hand, but, yet, on the contrary, nevertheless, obviously, finally, lastly, ultimately, therefore, hence, indeed, in other words and meanwhile.
SAT essays are composed of topic sentences and supporting sentences. Although most of the time the main idea is stated in the essay directly, other times it is implied. </p>
<p>I'll recap:
1- Improving Paragraphs are easier than improving sentences and identifying sentence errors because they involve easier grammatical questions that are well predictable. <a href="Subject-Verb%20agreement,%20Pronoun%20Shifting,%20Comma%20Splice,%20Run%20on%20sentences,%20illogical%20transitions">b</a>**
2-Essays should be in logical order and should be coherent, so most questions will ask you to revise or delete sentences that are irrelevant and illogical. If you are asked to revise a paragraph or sentence for coherence, look for the answer choice that includes combined short sentences, Parallel verbs, and consistent pronouns.
3- The essay should be skimmed(optional) first then go through the questions. Don't READ the essay, because you're anyway going to reread it for the questions. </p>
<p>Good Luck! :)</p>