Sentence boundaries
The samples were ready; the team began testing. Both sides can stand alone as complete sentences, so a semicolon can join them. A comma alone would create a comma splice. Read both clauses before choosing punctuation.
Reading and Writing · Skill practice
SAT Writing Practice: Rules, Examples & a Review Routine
Start with a specific decision: where a sentence ends, which verb agrees, or how two ideas connect. These short original examples let you explain a rule before moving to official SAT questions.
Published by Dolphin · Practical guidance, with official sources linked below.
Start here
Make your next step specific.
Treat a correct guess as something to review. Before checking an explanation, say which rule or relationship makes your answer work.
Subject–verb agreement
The collection of maps is valuable. The subject is “collection,” which is singular; “of maps” does not change the verb. Find the head of the subject before being distracted by a nearby plural noun.
Logical transitions
The new material is lightweight. However, it is expensive to produce. The second sentence introduces a drawback, so a contrast transition fits. Do not choose a transition just because it sounds formal.
Rhetorical choices
Suppose your notes say a telescope launched in 2021 and measures infrared light. If asked to emphasize what the telescope measures, choose wording about infrared light. A true launch date alone would not meet that goal.
Put it into practice
A focused writing-practice session
Name one rule
Choose the pattern from a recent miss. Write a one-sentence rule and your own example. If the rule is vague, use the Reading and Writing guides before adding more questions.
Apply it without help
Work through a small set. Mark uncertain answers before revealing explanations. Compare the grammar or relationship in each choice, including why the tempting wrong answer fails.
Check it later in context
Return to a fresh question after another study session. Mix the skill with other topics once you can explain it independently; repeating the same answer is a weak check of understanding.
A working checklist
Before revealing the answer
Use this during your session. These checkmarks are a temporary worksheet and are not saved to your Dolphin progress.
Continue with Dolphin
Practice, review, and choose what comes next.
Explore Dolphin’s existing practice tools or start with its public SAT skill guides. Dolphin Web requires a paid subscription; official free resources remain available without a purchase.
Common questions
Are these official SAT questions?
No. The four examples above are original teaching examples, not College Board test items. Use the linked Student Question Bank for official practice.
Which areas should I practice?
College Board groups Reading and Writing into Information and Ideas, Craft and Structure, Expression of Ideas, and Standard English Conventions. This page concentrates on writing decisions; use your missed questions to choose what comes next.
Who publishes this guide?
Dolphin, a study product from PaloAI Inc., publishes this guide. Dolphin Web is a paid subscription. You do not need a Dolphin purchase to use the official free resources linked here. Dolphin is not affiliated with or endorsed by College Board.
Sources and publisher
- College Board: Reading and Writing
- College Board: Student Question Bank
- College Board: using Khan Academy
Published by Dolphin, from PaloAI Inc. Source links checked November 7, 2026. Study routines and selection checklists are Dolphin editorial suggestions. SAT is a trademark of College Board. Dolphin is not affiliated with or endorsed by College Board.