The one-tool solution
Before the activities, a practical suggestion: if you find yourself scrambling for speaking content multiple times a week, YapYapGo eliminates the problem entirely. It's a free classroom speaking practice tool with thousands of levelled questions, automatic pair shuffling, and built-in timers across six speaking modes. Open it at the start of class and you have an entire speaking lesson with zero prep.
That said, here are activities that need absolutely nothing.
Activities that need zero materials
The question swap
You provide one question. Students discuss in pairs for three minutes. Then you call "swap" - students change partners and discuss the same question again with someone new.
Why the repetition works: the second time students discuss a topic, they speak more fluently. They've already formulated their thoughts once, so the language comes out faster and more naturally. This is essentially the research principle behind the 4/3/2 technique - repeated production on the same content builds fluency.
The opinion line
Read a statement: "Money is more important than free time." Students who agree stand on one side of the room, students who disagree stand on the other. Then pair them across the line - one "agree" with one "disagree." Three minutes of discussion. New statement, rearrange, new pairs.
The physical movement adds energy, and the cross-opinion pairing guarantees genuine disagreement - which generates more language than agreement ever does.
Chain interviews
Student A interviews Student B for two minutes (any topic). Then Student B interviews Student C for two minutes. Then C interviews D. After three rounds, ask students to report what they learned about the person they interviewed - not about themselves. Forces active listening and third-person reporting.
The 30-second pitch
Give a topic: "Convince your partner to visit your hometown." Each student has exactly 30 seconds - no more. Partner gives feedback: "You convinced me because..." or "I wasn't convinced because..."
The extreme time limit forces students to prioritise and speak efficiently. It's also surprisingly fun - students get competitive about making the most persuasive case.
Prediction game
"What will be the biggest news story this week?" "What will your partner eat for dinner tonight?" "What score will [local football team] get this weekend?"
Students make predictions and explain their reasoning. Follow up next lesson - who was right? The follow-up creates continuity between lessons and gives students a reason to remember what was said.