Case workbench
Your affirmative case
Start from a blank page with the steps below, or bring in a case you already wrote.
Practice round
Debate the full round
Real NSDA times and speech order. The AI debates the other side and cross-examines you. A judge you choose writes the ballot, shows the lines that decided it, and assigns three drills.
Logical fallacies
Spot the flaw in the reasoning
A fallacy is a mistake in reasoning that can make a weak argument sound strong. Learn the common ones, practice spotting them, and check any argument for them: yours or someone else's.
Practice
Name that fallacy
Read the argument. Pick the fallacy it commits, or "No fallacy" if the reasoning holds up.
Check an argument
Find the fallacies in any text
Paste an opponent's case, a teammate's speech, or a paragraph from an article. To check your own case, use Find fallacies in any contention.