Hi! Sorry for responding so late…
Looking through the blue book right now to help you. I’ll outline some of the key points for you right here:
For the “Improving Sentences” portion -
1. Read the entire sentence first! and remember, choice A is always the same sentence (the sentence is unchanged). About 20% (because there are 5 answer choices) of the time, choice A is correct.
2. Remember to read each choice along with the actual sentence (to fill in the gaps basically), and don’t just read the choices by themselves.
3. Use Process of Elimination to help and guide you. Some POE tips:
- succinct answers are key! if you are stuck between two answer choices, choose the one that is shorter/gets to the point quicker
- if the answer choice makes the sentence have a different meaning it is wrong no matter how good the grammar is.
For the “Identifying Sentence Errors” portion -
1. Consider each question as true-false: there is only one containing the right answer. Remember: E = no error, and that is also apart of the answers quite often (ranges from 3-6 in each section, from what I’ve seen)
2. Just because something “sounds” right doesn’t mean it’s always right (this applies to both kinds of grammar sections actually). Make sure you have logical proof to why the sentence doesn’t make sense.
3. Study your idioms! This isn’t necessarily the most important part, but it does help you with 1-2 questions toward the end. These are hard because sometimes they’re not part of everyday grammar and so you usually have to study them/memorize them to know them immediately when you see them.
To be honest, the blue book is looking kind of skimpy on help for the grammar sections… I’d say you should look into buying another prep book (maybe Barron’s 2400 or Princeton Review Manual if you’re looking for prep books that are more technique-filled rather than test/practice filled)
For more resources, I’d really suggest using this link and reviewing all of the rules! Here is another answered post about grammar and check my writing tag for more answered questions about the writing section and the SAT in general.