Chapter 1
How a Round Works
Public Forum puts two teams of two against each other on a current-events question, in a format built so that any thoughtful adult can follow it and judge it.
The resolution
Every round is a debate about one sentence, the resolution. NSDA members vote on topics, and the chosen resolutions are posted at speechanddebate.org/topics. A tournament may use whichever month's topic suits its date; one held early in a month often keeps the previous topic so teams have time to prepare. The national tournament has its own topic.
Resolutions come from the news and start with the word Resolved. The Pro team (also called the affirmative) tries to prove the resolution true. The Con team (the negative) tries to prove it false. PF has no fixed burdens of proof. The wording of each resolution decides what each side has to show. A resolution that states a fact has to be proven or disproven as a fact; one that proposes an action has to be shown to be a good or bad idea.
Sides and the coin toss
Teams don't know their side before the round. A coin toss decides it. The team that wins the toss chooses either its side or whether it speaks first or second, and the other team makes the remaining choice. Because you can't control your side, you need a case for both. PF is also the only debate event where the negative team can speak first.
The order of speeches
A round has four kinds of speeches and three crossfire periods. "Team A" is whichever team speaks first.
| Speech | Who | Time |
| Constructive | Team A, first speaker | 4:00 |
| Constructive | Team B, first speaker | 4:00 |
| Crossfire | Both first speakers | 3:00 |
| Rebuttal | Team A, second speaker | 4:00 |
| Rebuttal | Team B, second speaker | 4:00 |
| Crossfire | Both second speakers | 3:00 |
| Summary | Team A, first speaker | 3:00 |
| Summary | Team B, first speaker | 3:00 |
| Grand crossfire | All four debaters | 3:00 |
| Final focus | Team A, second speaker | 2:00 |
| Final focus | Team B, second speaker | 2:00 |
| Prep time | Each team, used between speeches | 3:00 |
Everyone speaks twice. The first speaker gives the constructive and the summary. The second speaker gives the rebuttal and the final focus. The team order never changes: if you give the first constructive, you also give the first rebuttal, summary, and final focus.
What each part does
- Constructive. Each team reads its prepared case, usually fully scripted. There is little direct clash yet.
- Crossfire. The two speakers ask and answer questions for three minutes. The team that spoke first asks the first question; after that, the exchange is open. Both debaters face the judge.
- Rebuttal. The first chance to answer the other side. The first rebuttal attacks the opposing case. The second rebuttal has to attack the opposing case and also defend its own.
- Summary. The first speakers narrow the round to its main issues and keep advocating for their side.
- Grand crossfire. All four debaters, usually seated. It can get heated, so decorum matters most here.
- Final focus. The last speech. No new arguments. The speaker explains why, based on what has already been said, their team should win.
Prep time
Each team has three minutes of prep for the whole round. You can use it in pieces between any speeches or crossfires, but never during one. Partners use it to plan the next speech or questions, so spend it carefully.
Winning the round
The judge fills out a ballot that names a winner and gives each debater speaker points, commonly on a scale up to 30, though rules vary by tournament. The win should be based on the arguments made in the round, not on the judge's own opinion of the topic. Points reflect speaking skill and style.
Tournament rounds
Every team debates the preliminary rounds. Early pairings are random; later teams meet others with the same record. After prelims, the teams with the best records (and sometimes the best speaker points) break to elimination rounds.
Key ideas
- PF is meant to be understood by an ordinary, well-read person.
- Topics are current and timely, and change during the season.
- Two teams of two: Pro supports the resolution and Con opposes it.
- 4-minute constructives and rebuttals, 3-minute summaries, 2-minute final focuses, with a crossfire after each pair of speeches.
Chapter 2
Building an Argument
Every good argument, in any debate event, has the same four parts. Listeners only hear it once, so each part has to be easy to spot.
The four parts
| Part | What it does | Example |
| Claim | The point you're trying to prove. | Incentives will increase the number of registered organ donors. |
| Warrant | Why the claim is true. | People respond to rewards; a tax credit gives undecided people a concrete reason to sign up. |
| Data | Evidence that backs the warrant. | A study or statistic showing registrations rose after an incentive program, with its source and date. |
| Impact | Why the judge should care. | More donors means fewer patients dying while they wait for a transplant. |
Claims
The claim, or tagline, is the first sentence of the argument. A strong claim does three things:
- Labels the argument with a number or sequence ("Our first reason to affirm…") so ideas don't blur together.
- Ties back to your side of the resolution. Using the resolution's own words works well.
- Says exactly what you'll prove. "Because of the economy" leaves the judge guessing and forming their own answer, which works against you. "Because it will stimulate economic growth" points the judge in your direction right away.
Warrants
A claim with no warrant is only an assertion. Put the warrant right after the claim and introduce it plainly: "This is true because…". The phrase reminds you to actually give a reason, which matters when you're speaking from notes. Some claims need more than one warrant, and some warrants need a sentence or two of explanation.
Data
High school debaters aren't experts, so your reasoning needs support from people who are: statistics, expert testimony, and specific examples. Cite a source whenever you use someone else's idea, and whenever the information is likely to be challenged. You don't need to cite common knowledge. A rough test: if you could find it in ten different places, just state it as fact. Doing so also makes you sound well read.
Impacts
An argument without an impact carries no weight, even if it's true. Signal it clearly ("This matters because…") and make it concrete. The best impacts involve people: "rising unemployment" becomes "millions of families unable to pay rent". Finish by linking back to your side: why this impact means the judge should affirm or negate.
Filling in the gaps
Four bare sentences make for choppy debate. Strong speakers add explanation and illustration while keeping the structure visible. Keep it to two or three sentences between each part. If an argument has two impacts, say so up front: "This matters for two reasons."
Key ideas
- Every argument needs a claim, a warrant, data, and an impact.
- The claim names the argument and gives a reason to support one side.
- The warrant is the logic underneath. Without it you're only asserting.
- Data comes from research outside the round.
- The impact shows why the argument matters in the bigger picture.
Chapter 3
Reading the Resolution
In PF the resolution decides the winner. Technical skill doesn't help if you haven't answered the question the resolution asks.
No preset burdens
In some events the affirmative always has to prove the same kinds of things. PF resolutions don't come with a set of burdens. Each topic creates its own, so you have to analyze every resolution fresh before you research or write.
Positive and normative
Each resolution is a constative, a statement that can be shown true or false. It follows one of two models of truth:
- Positive statements describe the world as it is and can be checked. Verbs like is, has, and will are the signal. "Tax cuts have increased employment" only asks whether one thing caused another.
- Normative statements ask what ought to be, which means judging values. Verbs like should and ought are the signal. "The government should cut taxes" asks whether cutting taxes is the right thing to do.
Three types of resolutions
| Type | It asks | Pro must show | Research focus |
| Fact | Is this claim about the world true? | The premise is true, and nothing more. | Empirical data about the status quo |
| Value | Is this ideal or judgment correct? | What is valuable, and that the resolution fits it. | Philosophical and theoretical sources |
| Policy | Should this specific action happen? | The action would produce the better world. | A mix of both |
Take a fact resolution claiming that post-9/11 policies reduced the risk of terrorism. Pro has to show that the risk went down and that those policies caused it. Pro does not have to show the policies were worth their cost to civil liberties. Trying to prove more than the resolution asks only makes Pro's job harder.
Most resolutions fit mainly into one type, and debaters often use both positive and normative arguments. Let the type shape how you use research, not how narrowly you look for it.
Try it on your topic
Key ideas
- PF resolutions have no preset burdens. Each topic sets its own.
- The team that wins the resolution wins the round, not just the better speakers.
- Positive statements can be checked against the world. Normative statements ask what ought to be.
- Resolutions are mainly fact, value, or policy, and each calls for different research.
Chapter 4
Writing the Constructive
The case is the only fully scripted part of the round. It's your chance to frame the debate on your own terms before anyone attacks it.
Write it like an essay, in several drafts, but remember the judge only hears it once. Clear structure makes four minutes of dense material easy to follow. Every case has an introduction, one or more contentions, and a conclusion.
Introduction (30–45 seconds)
- Frame the round. Many debaters open with a quotation from a well-known or well-qualified source. It should be rhetorical rather than full of data.
- State your side. Something as simple as "My partner and I agree, so we affirm." Take every chance to repeat your position.
- State the resolution if you speak first. Many judges come from outside debate and may not know the topic. The second team can skip this.
- Define key terms, either for clarity (an unfamiliar phrase) or for strategy (a word like "threat" whose meaning shapes the round). Keep definitions fair to both sides. Judges dislike long fights about words.
- Add observations that explain how your definitions set each side's burden. For example, defining "appropriate" as "proper in some circumstances" lets Pro argue it only needs to show the action is sometimes justified.
Contentions
Contentions are your main, independent reasons the resolution is true or false. Gather your best arguments and group them into themes by impact, time, place, or importance. Each contention should stand on its own, which makes the case harder to attack and gives you more options later. Two or three is typical. More than three is hard for a judge to remember, and one leaves you inflexible. Never trade depth for breadth.
Sub-points
A broad contention like "Affirming improves the economy" can be split into lettered sub-points: A, it creates jobs; B, it spurs investment. Sub-points don't need to be independent, and you shouldn't add them just to have them. Taglines should be short. Data should be plentiful and woven into your own words; a single contention may use six or seven sources. Keep it pleasant to listen to.
Conclusion (10–20 seconds)
Briefly sum up your arguments and link back to your opening frame.
Strategy
A good case proves your side and also sets up your rebuttals against the other side. Experienced teams sometimes write a flex case, with more contentions than fit in four minutes, and choose which to read after hearing the other team. The first-speaking team needs a complete, varied case. The second-speaking team can adjust its definitions and observations to answer the first.
Length and delivery
Target 725–775 words. A 750-word case read in four minutes is about 187.5 words per minute, a little faster than conversation. If you feel rushed when you practice, cut words.
Test your reading speed.
Always time your practice. Bold the words you want to stress and italicize source names you can read quickly. Start slowly: the judge needs a few seconds to get used to your voice. Rounds are rarely won in the constructive, but they can be lost there.
Key ideas
- The constructive is four minutes long.
- Open with an introduction that frames the round and defines key terms.
- Follow with two or three independent contentions.
- Use sub-points only when they make the argument clearer.
- Aim for 725–775 words.
Chapter 5
Crossfire
Crossfire is where the clash starts. Without it a round would just be two prepared speeches. With it, debaters have to engage.
How it works
There are three crossfires of three minutes each. Nobody controls the time: everyone can ask and answer. The first two involve one speaker from each team; grand crossfire involves all four. The team that spoke first asks the first question, and after that the exchange is open.
Two kinds of goals
Communicative goals are about what the judge sees:
- Poise. Stay calm and mature, even when your opponent isn't. Be patient with angry opponents, forgiving of ones who don't know the material, and firm with aggressive ones.
- Perceptual control. Look like you're winning. Keep the same polish you have in your speeches. Rolling your eyes or snapping at an opponent tells the judge you're a flustered teenager, not an expert.
- Face time. Address your questions and answers to the judge, not your opponent. It feels odd, but judges vote; opponents don't.
Argumentative goals are about moving the debate:
- Clarify an unclear argument or piece of evidence. In PF you have to answer everything, so you can't afford to misunderstand.
- Challenge an argument you disagree with, putting the speaker on defense.
- Establish a point you'll use later. Getting agreement on shared premises makes the real disagreements stand out. Don't overdo it, or you'll give away your plan.
Asking good questions
Good questioning starts with listening. The goal is useful answers, not questions for their own sake. Effective questions are:
- Brief. You cover more ground and avoid confusion.
- Simple. One main clause, at most one extra phrase.
- Focused. One idea at a time.
Close-ended questions, the kind with a yes-or-no answer, usually work best in PF because they keep control with you. A series of easy questions can lead an opponent step by step into a damaging admission. This is the garden path. Open-ended questions give the other side time to re-explain their case.
Avoid questions that start with "Wouldn't you agree…" or "Isn't it true…". They invite the speaker to repeat their case. Instead, state the challenge as a fact ("Given X, how do you account for Y?") or point at a flaw ("Does your evidence come from before or after the policy changed?").
Giving good answers
- Brief, though in PF a longer answer can sometimes swing momentum or steer you off a garden path.
- Focused on what was asked. You can redirect toward stronger ground.
- Honest. A confident "I don't know" ends the issue. A dodge like "I don't have those numbers with me" draws attention to it.
Managing the exchange
Balance asking with answering. After answering, ask "May I ask a question?"; after asking, offer "Do you have a question for us?". Mix quick yes-or-no questions with an occasional open one. If an opponent won't let you speak, stay calm and don't raise your voice. Try once or twice, then wait for them to stop. The judge notices bullying.
Grand crossfire teamwork
Teams split grand crossfire evenly, let their stronger questioner lead, or let the summary speaker carry it so the final focus speaker can prepare. Whatever you choose, never talk over your partner.
Key ideas
- Communicative goals: poise, perceptual control, and face time with the judge.
- Argumentative goals: clarify, challenge, and establish.
- Questions should be brief, simple, and focused. Close-ended usually wins in PF.
- Answers should be brief, focused, and honest.
- Stay calm, face the judge, and don't talk over your partner in grand crossfire.
Chapter 6
Flowing
The flow is your notes on every argument in the round. Without a clean flow you'll answer arguments nobody made and miss the ones they did.
Three habits for every flow
- Flow the warrant, not just the claim. Many arguments share a claim. The warrant tells you exactly which version you have to answer.
- Use two pen colors, one for Pro and one for Con, so you can see at a glance who said what and what still needs an answer.
- Use shorthand. You can't write every word. Abbreviate repeated terms (micro-lending becomes "ML") and use symbols like $ for money. Build a system you're comfortable with.
The PF flow
PF has a standard format. Use two sheets: a Pro flow with the Pro case and every response to it, and a Con flow with the Con case and every response to it. Flow vertically, with the case down the left edge and a narrow column for each later speech that touches that case.
| Your team | Columns on your own case's flow |
| Speaking first (6 columns) | Your case · their rebuttal · your summary · their summary · your final focus · their final focus |
| Speaking second (7 columns) | Your case · their rebuttal · your rebuttal · their summary · your summary · their final focus · your final focus |
The first team's rebuttal isn't on its own flow because that speech attacks the other team's case, not its own.
Line responses up
Write each response beside the argument it answers, in the next column, at the same height, not in the order it was spoken. If their first response hits your third sub-point, it goes next to your third sub-point. Responses to responses continue across the same line. At a glance you can see which arguments were answered and which were dropped.
Key ideas
- Track every argument on the flow.
- PF uses two sheets, one per case.
- Flow the warrant, use two colors, and use shorthand.
- Responses go next to the argument they answer.
Chapter 7
Refutation and Rebuttal
Clash is what separates debate from two people giving speeches. Refutation attacks their arguments; rebuttal rebuilds yours.
Four steps to every response
- Locate the argument on the judge's flow by signposting: "Look at their second contention."
- Summarize it in 5–10 seconds, with its claim and warrant, so the judge knows exactly what you're answering.
- Respond to it.
- Impact your response, in the real world and in the round.
Where to attack
- Claim-level: offer a different reason the claim is false without touching their logic. For example, "Unemployment won't rise because infrastructure spending creates jobs."
- Impact-level: accept the argument but say it matters less. For example, "Those job losses are the cost of modernizing the economy."
- Warrant-level: show their reasoning is wrong or their data is missing. For example, "It doesn't stifle the private sector. It sends money to private contractors." This is usually the strongest option.
Why warrant-level wins. "A because B" answered with "C because D" gives the judge two separate arguments that never meet. "A because B" answered with "Not A, because not B" forces a choice. That is real clash.
Finish each response with its impact: what it means for people, and what it means for the ballot. For example: "That's millions of jobs created, and since this was their central argument, it now flows our way."
Offense and defense
Offense is a reason to vote for you: the resolution creates jobs. Defense is a reason to discount their argument: it won't create as many jobs as they say. Offense is usually more persuasive, but one kind of defense impresses judges: showing that an opponent's study has a flawed methodology.
The burden of rejoinder
In PF you must answer your opponents' arguments. An argument they never answer is a dropped argument, and it counts as true. Answer at the first chance you get, or you lose the right to:
- Arguments in the constructives are answered in the rebuttals.
- Arguments in the first rebuttal are answered in the second rebuttal.
- Arguments in the rebuttals are answered in the summaries.
First rebuttal
The first-speaking team spends four minutes on the opponent's case. Go line-by-line down their flow, group similar arguments, and use blocks, answers you wrote ahead of time. Try to leave nothing unanswered.
Second rebuttal
This is the harder speech: eight minutes of material to handle in four. Aim for roughly two minutes attacking and two defending so you don't get ball-parked into debating only on their ground. Three tools help:
- Road map: "I'll start on their case, then defend ours."
- Extend anything they didn't answer, and say why it matters.
- Cross-apply an answer from one part of the flow to another, instead of repeating it.
Summary
In three minutes nobody can cover everything, so the summary has a lighter burden. Choose what to cover. Extend your strongest offense and defense from the rebuttal, coordinate with your partner, give a road map, and make the round clearer.
Key ideas
- Locate, summarize, respond, and impact every answer.
- Attack the warrant whenever you can.
- Offense is usually stronger than defense.
- Dropped arguments count as true, so answer at the first opportunity.
Chapter 8
Final Focus and Weighing
By the end of a round the judge may have twenty or thirty arguments on the flow. Crystallization tells them which ones matter and why you win them.
Without it, the judge sorts the round alone and may decide on their own instincts. Constructives show research and rebuttals show quick thinking. Crystallization shows you can compare and prioritize, and it can't be scripted ahead of time.
Three goals
- Select the issues by how much clash they've produced, how connected they are to the rest of the round, and where you're strongest.
- Close debate on them. Answer lingering objections so the judge has nothing left to figure out.
- Weigh them. Don't just repeat answers; explain why your arguments matter more than theirs.
Ways to weigh
| Mechanism | Question it answers |
| Magnitude | Which impact is bigger? When the harms are different kinds, translate them into a common currency, such as lives. |
| Framework | Which kind of impact should come first? For example, human life before money. |
| Probability | Which impact is more likely? This depends on the strength of the link: $1,000 of new debt barely links to a debt crisis, while $1 billion does. |
| Answered or not | Which arguments are uncontested? It's a clean, simple way to decide, but it's the weakest mechanism because it ignores real-world logic. |
The final focus
- No new arguments. You may only respond to new material from the summaries or, if you speak last, from their final focus.
- Give clear voting issues: offensive reasons to vote for you. The judge needs something to vote for, not just against.
- Structure it by clearing their offense first and then giving yours, or by following the order of the flow. Either way, end with a 10–15 second summary and your list of reasons.
- If you speak first, anticipate their final focus. If you speak last, answer it.
- Match your summary: both speeches should push the same winning arguments. The final focus should read like the ballot you want the judge to write.
Key ideas
- Select, close, and weigh the key issues.
- Weigh by magnitude, framework, probability, or what went unanswered.
- The final focus has no new arguments and ends with clear voting issues.
- Favor offense.
Chapter 9
Research and Prep
Prepare both sides, research to understand the topic rather than to find one quote, and cite so anyone could find your source.
What to prepare
- A Pro case and a Con case.
- Two block files, one answering Pro arguments and one answering Con arguments. Organize them by argument with a table of contents.
- A working knowledge of the methodology behind your key evidence, so you can defend it and attack it when others read it. Every source has flaws.
Research to learn
Many debaters write an argument and then hunt for a quote to back it up. That leaves you with a narrow view and no answers when questioned. Read broadly first.
Good sources: academic books and articles (usually the most reliable), think-tank reports (watch for their bias), government reports from the relevant agency, respected magazines, court rulings, and major newspapers. For public opinion, use established pollsters like Gallup or Pew. For the newest developments, use news coverage.
Search smarter: learn the key terms experts use (for example, "corporate personhood" rather than "companies funding campaigns"), search for PDFs to find academic work, and use databases. NSDA members get free access to HeinOnline.
Check bias: read an organization's mission statement and look up authors. Blogs and forums are rarely reliable unless the author is a real expert in the field.
Citing in the round
- Always give the date.
- For academics, give the author's name and credentials. For news outlets, think tanks, agencies, and polls, name the organization.
- Give enough that a listener could find the exact article.
- Cite before the data ("According to an April report from…") or in the middle. Avoid citing after, when the audience has already moved on.
- Cite the organization, not the website: say "CNN", not "CNN.com".
- Cite the underlying source when an article reports on a study or poll.
- Never cite Wikipedia. Use it to learn, then cite the sources it links to.
What to bring
Three copies of each case plus an electronic backup, block files for both sides, the full paragraph behind every card you read (opponents and judges may ask to see it), plenty of unlined paper, and pens in several colors.
Key ideas
- Prepare constructives and rebuttal blocks before the tournament.
- Research to be broadly informed, not only to find specific quotes.
- Use a wide range of academic and popular sources, and know their biases.
- Always cite the date, and make every citation findable.
Chapter 10
At the Tournament
A tournament is long and full of experienced people. Knowing how it's structured, and how to carry yourself, makes the day go better for everyone.
How tournaments are structured
PF tournaments usually have four to seven preliminary rounds that every team debates. Some local tournaments stop there. Others advance teams to elimination rounds, either every team above a record (often four or five wins) or a fixed bracket: 64 (triple octofinals), 32 (double octofinals), 16 (octofinals), 8 (quarterfinals), or 4 (semifinals). Lose an elim and you're out. Elims usually have a panel of three judges, and the majority decides.
When a record cutoff doesn't produce a clean bracket, the first elim is partial. The top seeds get a bye and everyone else debates to fill the next full round.
Professionalism
- Act as you would in a job interview. The person watching you in the hallway may be your next judge.
- Leave every classroom exactly as you found it, and don't touch the room's electronics.
- Stay respectful in crossfire and out of the round. Judges don't vote down teams for being too polite.
- When results are posted, celebrate or sulk quietly. Other people are having the opposite day.
Working with judges
- Small talk before the round is fine. Save questions about the round until both teams are in the room.
- Ask specific questions ("Do you prefer we stand or sit for crossfire?") instead of asking for a "paradigm". Many judges are parents or community members and won't know the term.
- Adapt to what the judge tells you. Don't argue with it.
- Time your own speeches. Don't expect the judge to.
- After the round, if the judge is quiet for a while, you may ask whether they'll give an oral critique or disclose. If not, pack up quietly.
- Never argue with a decision. If a judge behaved inappropriately (sleeping, on the phone, harassment), tell your coach right away.
Staying sharp
- Sleep. Past a point, one more article isn't worth the lost rest.
- Eat and hydrate. Bring a refillable water bottle and money for food.
- Warm up your voice. Never let a judge hear your first speech of the day. Practice one before Round 1.
Key ideas
- Behave professionally all day, in and out of rounds.
- Everyone debates prelims. Only the top teams reach elims.
- Respect opponents, judges, and the host school.
- Keep interactions with judges limited and adapt to their preferences.
- Sleep, eat, hydrate, and warm up.