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✍️ Writing & Research Grades 5–12
Thesis Statement Builder
A thesis is the one-sentence answer to your essay question. A strong thesis is arguable (someone could disagree), specific, and supportable with evidence.
Learn How it works
Formula: Topic + claim (your position) + because + reason 1, reason 2, and reason 3.
Weak: Social media is a thing many teens use.
It's a fact, not a claim. No one would argue.
It's a fact, not a claim. No one would argue.
Strong: Teens should limit social media to one hour a day because it improves sleep, focus, and face-to-face friendships.
Weak: In this essay I will talk about the Civil War.
Announces a topic but makes no claim.
Announces a topic but makes no claim.
Strong: The Union won the Civil War mainly because of its factories, railroads, and larger population.
Try it Build your thesis
Your thesis will appear here.
Practice Check yourself
Answer, then tap Check. You get an explanation either way.