Sunk Cost Logical Fallacy Activity Pack

"This movie is so dead, man." "Dude, this was YOUR idea." "We paid $25 for this. I'm not bailing now!"

The movie's terrible. You both know it. But you already paid for the tickets, drove to the cinema, bought the popcorn - so you sit there for another 90 minutes, suffering, because walking out would mean "wasting" the money. Except you're wasting something worse: your time.

You've already spent the money. You're not getting it back whether you stay or leave. But it feels like quitting would make the loss worse, so you keep going. That's the trap.

That's the Sunk Cost Fallacy. Your learners fall into it all the time - and so do adults. "I've already read half this book, I can't stop now." "I've been practising guitar for two years, I can't switch to drums." "I've spent so long on this assignment, I might as well finish it this way even though it's wrong." The past investment becomes the reason to keep going, even when the smart move is to stop.

This 20-page pack teaches them to recognise when someone keeps doing something that isn't working just because they've already put time, money or effort into it. Through an illustrated true story, an original comic, and hands-on activities, they don't memorise a definition. They learn to catch it in the wild.

THE STORY INSIDE

Every pack opens with a true story from history - not a paragraph in a textbook, but a fully illustrated, multi-page narrative.

This pack features the story of America and the Vietnam War - the most devastating example of the sunk cost fallacy in modern history. China had gone communist in 1949, and US leaders feared the rest of Southeast Asia would follow like dominoes. So in the 1950s, the US sent a few advisors to South Vietnam to stop communism. This was known as Domino Theory.

Then in 1961, John F. Kennedy sent thousands of military advisors to train the locals and squash the communists. But the Vietcong weren't going down without a fight. They used guerrilla tactics - sneaky, surprise attacks, booby traps, and tunnels to fight back. Things weren't going so well.

So in 1964, President Lyndon B. Johnson sent in the full blown US army, thinking numbers could win the war. President Johnson refused to give up, no matter how many soldiers died. Backing out would mean all the money, time, and lives had been wasted. "We've come too far to turn back now." Troops grew to 184,000 by 1965, 385,000 by 1966, and over 540,000 by 1969. The war dragged on - unwinnable, yet unstoppable.

It was a disaster. In 1973, American citizens finally demanded withdrawal. The US withdrew their troops. Two years later, North Vietnam captured Saigon. The communists won. It was all for nothing. 58,220 American soldiers dead. Millions of Vietnamese killed. President Richard Nixon claimed "We achieved peace with honour." He never admitted the whole thing was a failure.

The sunk cost fallacy is ruthless. Sometimes the bravest choice is to cut your losses, walk away, and admit you were wrong.

WHAT'S INSIDE

📖 Illustrated Historical Story - The true story of America's Vietnam War, and how "we've come too far to turn back" kept a nation trapped in an unwinnable war that cost millions of lives, told through vivid illustrations across multiple pages.

🎨 Original Comic - Duchess and Bruno hit the Sunk Cost Fallacy in a scenario about sitting through a terrible movie because they already paid for the tickets. Followed by a "Break It Down" page that connects the joke to the concept.

🔍 Real-Life Examples - Spot the fallacy in advertising, social media, news and politics. Drawn from what they actually encounter, not hypotheticals.

📝 Sunk Cost Fallacy Breakdown - Clear definition, worked examples, and activities that build to mastery.

✏️ Interactive Activities - Code Breaker puzzle, Match the Fallacy, The Great Word Hunt, and a Draw Your Own Comic page.

🐾 Hidden Gizmo Hunt - A sneaky character hidden somewhere in the pack. Small detail, disproportionate engagement.

📋 Answer Sheet - For teachers, parents and group leaders. No prep required.

WHAT MAKES THIS DIFFERENT

Most fallacy resources are a definition on a slide and a matching worksheet. This one teaches through storytelling.

Your learners don't just find out what the Sunk Cost Fallacy is. They watch it keep a superpower in an unwinnable war for a decade, laugh at it in a comic, then go hunting for it in the wild. That sequence is why it sticks.

WHO IS THIS FOR?

→ Teachers wanting a critical thinking activity that actually engages middle schoolers, not just occupies them

→ Homeschooling families who want structured, curriculum-aligned content that doesn't feel like a chore

→ Parents who'd rather their kids interrogate a claim than swallow it

→ Debate coaches and gifted programs looking for supplementary material with real depth

Designed for ages 10+. Used successfully in middle school, high school, homeschool and family settings - and plenty of adults have quietly worked through it themselves.

WHAT YOU'LL RECEIVE

Printed + Digital

📦 Professionally printed 20-page A4 booklet (21cm x 29.7cm), quality stock
🎨 Colour and black-and-white pages
📋 Answer sheet included
📬 Posted to your door from the Gold Coast
💻 Plus the full digital file, delivered instantly - print it again any time you need another copy

Digital Only

💻 The complete 20-page pack as an instant download
🖨️ Print as many copies as you need for your own home or classroom
📋 Answer sheet included
⚡ No shipping, no wait - have it in front of them tonight

THE FIRST PACK PROMISE

Read it with your kid. If they don't ask for the next one, email us within 30 days and post the booklet back - we'll refund you in full.

No restocking fee. No store credit. No interrogation about why.

We ask for the printed copy back because it's a physical product. Everything else is on us.

(Applies to printed packs. For the digital version, grab the free Bandwagon pack above first - same format, same style, so you know exactly what you're getting.)

CURRICULUM ALIGNMENT

Aligned to critical thinking and literacy standards across three national curricula.

Australia (Australian Curriculum) - Critical and Creative Thinking general capability: analysis, evaluation, inquiry-based learning. English: comprehension, critical thinking, storytelling, writing. Visual Arts: creativity and communication through comic creation.

United Kingdom (National Curriculum) - English: reading comprehension, vocabulary development, persuasive argument, creative writing. Art & Design: developing ideas and creating visual stories. Citizenship: evaluating sources for reliability and bias.

United States (Common Core) - ELA: analysing texts, evaluating arguments, narrative writing, inferencing. Standards for Mathematical Practice: critiquing the reasoning of others. Suitable for Grade 6 and above.

NEED HELP?

Anything arrives damaged, or you've got a question - contact us and we'll sort it out.

TERMS OF USE

Personal or single-classroom use only. Not for sharing, reselling or commercial use. Full details in the included Terms of Use document.