Reading & Writing · Checkpoint 14 of 30 · All four domains · ~12 min
R&W mastery checkpoint
Review all four domains, test yourself, and pick what needs more work.
What this is: not a fake SAT section — a checkpoint to consolidate the last nine lessons, test yourself on a mixed set of real official questions, and decide honestly what still leaks points. Completing web pages isn't mastery; the goal here is knowing exactly where you stand.
The four domains, one line each
Standard English Conventions: punctuate by clause structure, not by ear; agreement hides behind prepositional phrases.
Expression of Ideas: transitions are category questions; synthesis questions are graded by the stated goal, not by truth.
Craft and Structure: predict the word before seeing choices; purpose questions ask what the author is doing.
Information and Ideas: main ideas must match scope; inferences must be guaranteed; evidence must strengthen the specific claim.
Quick self-check
Which of these is a comma splice?
B joins two independent clauses with only a comma — the splice. A's first clause is dependent ("Although…"), so its comma is legal; C's semicolon is the fix. If you hesitated, revisit Sentence boundaries.
"The results seemed conclusive. ____, three later labs failed to replicate them." The best transition expresses which relationship?
Seemed conclusive → failed to replicate: the second sentence pushes against the first. Hesitated? Revisit Transitions.
The real test: a mixed official set
Open the official Question Bank (opens in a new tab) and build a mixed Reading & Writing set — 15–20 questions across all four domains, medium difficulty. Timed, about 71 seconds per question. Then review every miss with the diagnose guide and log them in your error log by domain.
Reflect honestly
From that set: which domain felt strongest, and which cost you the most points? Note both in My Study — the weak one is your drill priority alongside the Math phase. Still stuck on a domain after reviewing its checkpoint and drilling official questions? That's exactly what free tutoring is for.
The official library of real SAT Suite questions. You can filter by section (Math or Reading and Writing), by content domain, by specific skill, and by difficulty, then export a custom practice set with answer explanations.
Bluebook is the app you will use on real test day. It includes full-length official adaptive practice tests, test previews, and the same built-in Desmos calculator, timer, annotation, and flagging tools you'll have on the actual SAT.