Prediction

Choose this exercise

Purpose: Test probability tracking and group coordination under simple, escalating constraints.

Use it when: Use during problem-solving or team decision-making workshops to examine risk management and strategy shifts under uncertain conditions.

Skip it when: Skip if participants are uncomfortable with basic card games, or when physical dexterity or sight limitations make card-reading impractical without extra support.

Group arrangement: Small groups of 3 to 7 participants seated in circles around a deck. For 7 total participants, form one group of 7 or split into 3 and 4.

Timing: 15 minutes total, allowing an introductory trial, strategy discussion, and a second timed attempt.

Materials and tools

• One standard 52-card deck without jokers per small group
• Scratch paper and pen per small group to record cards remaining

Before participants arrive

1. Shuffle one standard deck per table.
2. Place the deck face down in the center of each small circle.
3. Instruct teams to leave space next to the deck for a neat, face-up discard spread visible to everyone.
4. Ensure writing materials are available at each station.

Say this to open

In this activity, your team tries to empty a standard deck of cards without hitting a trap. You will take turns. Before a card is flipped, the person whose turn it is must nominate one card value that the card will not be. For example, you might say 'Not an Ace.' If the flipped card is indeed not an Ace, place it face up where everyone can see it and pass the turn to the next person. If the card flipped is an Ace, the round ends instantly. Your goal is to eliminate as many cards as possible from the deck.

How to run it

1. Demonstrate rules and run practice flips 3 minutes

   Demonstrate the turn structure at the front of the room with two volunteer participants. Run three sample cards showing how to declare a value, flip, place the card in a visible discard pile, and check for a match. Instruct all groups to sit around their decks, run two quick practice flips, and ask clarifying questions.

2. Run Round 1 4 minutes

   Start the first round. Teams take turns clockwise. Each person names a forbidden value, flips one card face up into the visible discard spread, and either passes the turn or stops. When a match occurs, the round ends instantly. If no match occurs, play stops after four minutes. In either case, teams count and record the unrevealed cards remaining in the deck.

3. Plan and strategize 3 minutes

   Give groups three minutes of discussion to analyze what happened. Encourage them to discuss card counting, probability, patterns of face values already revealed in their discard pile, and how they will coordinate nominations in the next round.

4. Run Round 2 and debrief 5 minutes

   Reset and shuffle decks. Teams run a second attempt using their refined strategy. The round ends instantly on a match, or after three minutes of play. Teams then count and record their final unrevealed cards. Spend the remaining two minutes asking two or three volunteer groups to share how their coordination strategy changed their score.

Debrief questions

• What strategy did your group develop to track odds as cards left the deck?
• How did individual decision-making shift once your team agreed on a coordinated system?
• What practical challenges arose when trying to execute your group's plan under pressure?

Finished output: Each group generates two recorded scores showing the number of unrevealed cards remaining at the end of each round.

Remote

Use a shared digital whiteboard or online card simulator where one person flips cards on screen share into a visible discard zone. Participants take turns nominating via audio or text chat before each digital flip occurs.

Hybrid

In-person small groups use physical decks while remote participants join a dedicated video breakout room using a shared digital card simulator or whiteboard deck. Remote teams report scores alongside in-person teams.

Access and participation choices

• Participants may pass their nomination turn to the next person without penalty.
• Visual descriptions of flipped cards can be voiced aloud by a designated table partner for anyone who cannot easily see the face values.
• Any participant may opt out of flipping and serve as scorekeeper or probability tracker.

If the session gets stuck

A participant forgets to nominate a value before flipping a card.

Discard the flipped card, place it at the bottom of the deck, and have the participant nominate clearly before flipping a replacement.

Teams disagree on which face values have already been played.

Keep flipped cards visible in an organized discard spread on the table so anyone can inspect the visible cards without disrupting the draw pile.

Terms used here

• Face value: The numerical or rank value of a card (Ace, 2 through 10, Jack, Queen, King), ignoring its suit.