Sunk Cost Fallacy Activity Pack | Logical Fallacy | Critical Thinking Activities | Bloom's Taxonomy
Sunk Cost Fallacy Activity Pack | Logical Fallacy | Critical Thinking Activities | Bloom's Taxonomy
Sunk Cost Fallacy Activity Pack | Logical Fallacy | Critical Thinking Activities | Bloom's Taxonomy
$12.95
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Description
You're watching the worst movie of your life. It's been awful since the opening credits. Your friend wants to leave. But you say: "We paid $25 for this. I'm not bailing now!"
The money is already gone. You're not getting it back whether you stay or leave. But it feels wrong to walk away after you've already invested — so you sit there for another 90 minutes, suffering through a film you hate, just to justify the $25 you already spent.
That's the Sunk Cost Fallacy. You keep going with something - not because it's working, not because it makes sense - but because you've already put in too much time, money, or effort to quit. Quitting feels like admitting it was all for nothing. So you double down instead of cutting your losses.
Kids fall for it all the time. "I've been practising piano for three years - I can't stop now, even though I hate it." "I've already read 200 pages of this book - I have to finish it even though it's boring." "We've been best friends since kindergarten - I can't end the friendship even though she's mean to me." The past investment becomes the reason to keep going, even when the smartest move is to walk away.
This 20-page printable activity pack teaches kids to recognise when they - or someone else - are throwing good time, money, or effort after bad. Through an illustrated true story from history, a funny comic, and hands-on activities featuring Duchess and Bruno, learners don't just memorise a definition. They understand the fallacy well enough to catch it in the wild.
⭐ Rated 5.0 on Etsy and TPT
THE STORY INSIDE
Every pack starts with a true story from history - not a paragraph in a textbook, but a fully illustrated, multi-page narrative.
This pack tells the story of how the Sunk Cost Fallacy trapped America in the Vietnam War. China had gone communist in 1949, and US leaders feared the rest of Southeast Asia would follow - the so-called Domino Theory. So in the 1950s, the US sent a few advisors to South Vietnam to stop communism. Then in 1961, John F. Kennedy sent 16,000 soldiers 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 well. So in 1964, President Lyndon B. Johnson sent in the full 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. The Vietnamese were just too good at using the land to their advantage.
It was a disaster. In 1973, American citizens finally demanded withdrawal. The US pulled out its troops. Two years later, North Vietnam captured Saigon. The communists won. It was all for nothing. 58,220 American soldiers dead. Over 2 million Vietnamese killed. North Vietnam is still communist today.
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 INCLUDED ⭐
📖 Illustrated Historical Story (Multiple Pages) - The true story of the Vietnam War - how the Sunk Cost Fallacy trapped America in an unwinnable war for over a decade, costing 58,220 American lives and over 2 million Vietnamese lives, told through vivid illustrations.
🎨 Original Comic - Duchess and Bruno are stuck at the cinema watching a terrible movie. Bruno wants to leave. Duchess refuses: "We paid $25 for this. I'm not bailing now!" Followed by a "Break It Down" analysis section that connects the humour to the concept.
🔍 Everyday Examples Page - Real-world examples of the Sunk Cost Fallacy across five categories: Friends & Family, TV Ads & Programs, Social Media, Journalists, and Politics. From staying in a bad friendship because "we've been friends since kindergarten" to keeping a failing TV show because "we already paid the host $2 million" to a government refusing to cancel a submarine that's $8 billion over budget.
✏️ Write Your Own Examples - Learners generate their own Sunk Cost Fallacy examples across the same five real-world categories.
📝 Sunk Cost Fallacy Breakdown - Clear definition, worked example, and a prompt for students to write their own.
🔎 Spot the Fallacy Comic - Duchess is watching a terrible movie at home. 15 minutes in, she knows it's awful. One hour in, she thinks about stopping. Two hours in: "I've gone this far... might as well finish it." Three hours later: "That's three hours of my life I'm not getting back." Learners identify the fallacy and respond in writing.
🦋 The Butterfly Effect Activity - A chain-of-consequences thinking exercise where learners explore what would have happened if Duchess had just turned the movie off at the start.
🔤 The Great Word Hunt - A cloze activity using vocabulary from the comic. Students fill in missing words while reinforcing comprehension. Includes colour-me-in B&W illustrations.
🔀 Unjumble — A word scramble puzzle where learners unscramble key vocabulary and draw an image to represent each word.
🎯 Match the Fallacy — Match definitions and examples across five different logical fallacies (Sunk Cost Fallacy, False Cause, Circular Reasoning, Bandwagon Effect, Gambler's Fallacy).
❓ The Fun Quiz Page - Three comprehension and reflection questions tied to the historical story, plus a prompt to quiz family and friends.
🎨 Draw Your Own Comic - Students create their own four-panel comic illustrating the fallacy, then explain how their comic demonstrates the concept.
🐾 Hidden Gizmo Hunt - 6 hidden Gizmo characters tucked throughout the pack. Students love finding them. Small detail, massive engagement.
📋 Answer Sheet - Complete answer key included. No extra prep needed.
⭐ WHY YOU'LL LOVE THIS ⭐
✅ Teaches through storytelling, not just definitions - learners actually remember the concept
✅ Moves through all levels of Bloom's Taxonomy (Remember → Understand → Apply → Analyse → Evaluate → Create)
✅ Works as a standalone lesson, extension activity, sub plan, or enrichment
✅ Zero prep - print and go (or hand out the booklet)
✅ Engages reluctant learners through comics, puzzles, and hidden character hunts
✅ Sparks genuine classroom discussion about evidence vs. personal stories
✅ Answer key included
WHAT MAKES THIS DIFFERENT
Most fallacy resources are a definition on a slide and a matching worksheet. This pack teaches through storytelling. Kids don't just learn what the Sunk Cost Fallacy is - they watch a country pour hundreds of thousands of soldiers into an unwinnable war because its leaders couldn't admit they were wrong, laugh at Duchess suffering through a terrible movie because she paid $25 for it, and then hunt for the fallacy in real-world examples.
Every illustration in this pack is hand-drawn by a real artist. No AI-generated images. No clip art. No templates. This is original artwork created specifically for this series - and you can see the difference on every page.
Every activity is mapped to a level of Bloom's Taxonomy - shown at the top of each page - so you can see the thinking skills being developed from Remember through to Create.
That's how you make a concept stick.
⭐ CURRICULUM ALIGNMENT ⭐
United States (Common Core State Standards): ELA - Analyse texts, evaluate arguments, narrative writing, and inferencing. Standards for Mathematical Practice - critiquing the reasoning of others.
Australia (Australian National Curriculum): Critical and Creative Thinking general capability - analysis, evaluation, and inquiry-based learning. English - comprehension, critical thinking, storytelling, and writing skills. Visual Arts - creativity and communication through comic creation.
United Kingdom (UK National Curriculum): English - reading comprehension, vocabulary development, persuasive argument, and creative writing. Art & Design - developing ideas and creating visual stories. Citizenship - evaluating sources for reliability and bias.
Suitable for Grades 5 and above.
⭐ WHO IS THIS FOR? ⭐
→ Teachers looking for a critical thinking activity that actually engages middle schoolers — not just keeps them quiet
→ Homeschooling families who want structured, curriculum-aligned content that doesn't feel like a chore
→ Parents who want their kids to spot when someone dodges a question by changing the subject
→ Debate coaches and gifted programs looking for supplementary materials with real depth
Designed for ages 10+ (Years/Grades 5 and above). Used successfully in middle school, high school, homeschool, and family settings.
⭐ WHAT YOU'LL RECEIVE ⭐
📥 A digital download - 20-page A4 PDF (21cm x 29.7cm), ready to print
🎨 Colour and B&W pages included
📋 Answer sheet included
🖨️ Download instantly after purchase - print as many copies as you need
⭐ WANT A PRINTED COPY? ⭐
If you'd prefer a professionally printed booklet shipped to your door, visit our store directly at duchessandbruno.com to order a physical copy.
⭐ COLLECT THE FULL SET ⭐
This is one of 24 logical fallacy activity packs in the Duchess & Bruno series. Each pack covers a different fallacy with its own unique historical story, comic, and activities. Collect them all to build a complete critical thinking library for your classroom.
⭐ WHAT TEACHERS ARE SAYING ⭐
⭐⭐⭐⭐⭐ "My kids absolutely adore the characters and story! It reminds us of horrible histories. I haven't found anything like this pack before. It's perfect for extension work and discussion." - Sandra
⭐⭐⭐⭐⭐ "This activity pack is way more fun than I expected! I wanted something that would teach critical thinking skills but I didn't think you could make that fun but this pack sure is. My kids love it and now they're asking for more." - Kylie
TERMS OF USE
This pack is for personal or single-classroom use only. Not for sharing, reselling, or commercial use. See the included Terms of Use document for full details.
NEED HELP?
If you have any trouble downloading or opening the files, contact us straight away. We'll sort it out and send you an updated file if needed.
Connect with us:
Instagram: @duchessbruno
Facebook: Duchess and Bruno
Website: www.duchessandbruno.com
Description
You're watching the worst movie of your life. It's been awful since the opening credits. Your friend wants to leave. But you say: "We paid $25 for this. I'm not bailing now!"
The money is already gone. You're not getting it back whether you stay or leave. But it feels wrong to walk away after you've already invested — so you sit there for another 90 minutes, suffering through a film you hate, just to justify the $25 you already spent.
That's the Sunk Cost Fallacy. You keep going with something - not because it's working, not because it makes sense - but because you've already put in too much time, money, or effort to quit. Quitting feels like admitting it was all for nothing. So you double down instead of cutting your losses.
Kids fall for it all the time. "I've been practising piano for three years - I can't stop now, even though I hate it." "I've already read 200 pages of this book - I have to finish it even though it's boring." "We've been best friends since kindergarten - I can't end the friendship even though she's mean to me." The past investment becomes the reason to keep going, even when the smartest move is to walk away.
This 20-page printable activity pack teaches kids to recognise when they - or someone else - are throwing good time, money, or effort after bad. Through an illustrated true story from history, a funny comic, and hands-on activities featuring Duchess and Bruno, learners don't just memorise a definition. They understand the fallacy well enough to catch it in the wild.
⭐ Rated 5.0 on Etsy and TPT
THE STORY INSIDE
Every pack starts with a true story from history - not a paragraph in a textbook, but a fully illustrated, multi-page narrative.
This pack tells the story of how the Sunk Cost Fallacy trapped America in the Vietnam War. China had gone communist in 1949, and US leaders feared the rest of Southeast Asia would follow - the so-called Domino Theory. So in the 1950s, the US sent a few advisors to South Vietnam to stop communism. Then in 1961, John F. Kennedy sent 16,000 soldiers 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 well. So in 1964, President Lyndon B. Johnson sent in the full 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. The Vietnamese were just too good at using the land to their advantage.
It was a disaster. In 1973, American citizens finally demanded withdrawal. The US pulled out its troops. Two years later, North Vietnam captured Saigon. The communists won. It was all for nothing. 58,220 American soldiers dead. Over 2 million Vietnamese killed. North Vietnam is still communist today.
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 INCLUDED ⭐
📖 Illustrated Historical Story (Multiple Pages) - The true story of the Vietnam War - how the Sunk Cost Fallacy trapped America in an unwinnable war for over a decade, costing 58,220 American lives and over 2 million Vietnamese lives, told through vivid illustrations.
🎨 Original Comic - Duchess and Bruno are stuck at the cinema watching a terrible movie. Bruno wants to leave. Duchess refuses: "We paid $25 for this. I'm not bailing now!" Followed by a "Break It Down" analysis section that connects the humour to the concept.
🔍 Everyday Examples Page - Real-world examples of the Sunk Cost Fallacy across five categories: Friends & Family, TV Ads & Programs, Social Media, Journalists, and Politics. From staying in a bad friendship because "we've been friends since kindergarten" to keeping a failing TV show because "we already paid the host $2 million" to a government refusing to cancel a submarine that's $8 billion over budget.
✏️ Write Your Own Examples - Learners generate their own Sunk Cost Fallacy examples across the same five real-world categories.
📝 Sunk Cost Fallacy Breakdown - Clear definition, worked example, and a prompt for students to write their own.
🔎 Spot the Fallacy Comic - Duchess is watching a terrible movie at home. 15 minutes in, she knows it's awful. One hour in, she thinks about stopping. Two hours in: "I've gone this far... might as well finish it." Three hours later: "That's three hours of my life I'm not getting back." Learners identify the fallacy and respond in writing.
🦋 The Butterfly Effect Activity - A chain-of-consequences thinking exercise where learners explore what would have happened if Duchess had just turned the movie off at the start.
🔤 The Great Word Hunt - A cloze activity using vocabulary from the comic. Students fill in missing words while reinforcing comprehension. Includes colour-me-in B&W illustrations.
🔀 Unjumble — A word scramble puzzle where learners unscramble key vocabulary and draw an image to represent each word.
🎯 Match the Fallacy — Match definitions and examples across five different logical fallacies (Sunk Cost Fallacy, False Cause, Circular Reasoning, Bandwagon Effect, Gambler's Fallacy).
❓ The Fun Quiz Page - Three comprehension and reflection questions tied to the historical story, plus a prompt to quiz family and friends.
🎨 Draw Your Own Comic - Students create their own four-panel comic illustrating the fallacy, then explain how their comic demonstrates the concept.
🐾 Hidden Gizmo Hunt - 6 hidden Gizmo characters tucked throughout the pack. Students love finding them. Small detail, massive engagement.
📋 Answer Sheet - Complete answer key included. No extra prep needed.
⭐ WHY YOU'LL LOVE THIS ⭐
✅ Teaches through storytelling, not just definitions - learners actually remember the concept
✅ Moves through all levels of Bloom's Taxonomy (Remember → Understand → Apply → Analyse → Evaluate → Create)
✅ Works as a standalone lesson, extension activity, sub plan, or enrichment
✅ Zero prep - print and go (or hand out the booklet)
✅ Engages reluctant learners through comics, puzzles, and hidden character hunts
✅ Sparks genuine classroom discussion about evidence vs. personal stories
✅ Answer key included
WHAT MAKES THIS DIFFERENT
Most fallacy resources are a definition on a slide and a matching worksheet. This pack teaches through storytelling. Kids don't just learn what the Sunk Cost Fallacy is - they watch a country pour hundreds of thousands of soldiers into an unwinnable war because its leaders couldn't admit they were wrong, laugh at Duchess suffering through a terrible movie because she paid $25 for it, and then hunt for the fallacy in real-world examples.
Every illustration in this pack is hand-drawn by a real artist. No AI-generated images. No clip art. No templates. This is original artwork created specifically for this series - and you can see the difference on every page.
Every activity is mapped to a level of Bloom's Taxonomy - shown at the top of each page - so you can see the thinking skills being developed from Remember through to Create.
That's how you make a concept stick.
⭐ CURRICULUM ALIGNMENT ⭐
United States (Common Core State Standards): ELA - Analyse texts, evaluate arguments, narrative writing, and inferencing. Standards for Mathematical Practice - critiquing the reasoning of others.
Australia (Australian National Curriculum): Critical and Creative Thinking general capability - analysis, evaluation, and inquiry-based learning. English - comprehension, critical thinking, storytelling, and writing skills. Visual Arts - creativity and communication through comic creation.
United Kingdom (UK National Curriculum): English - reading comprehension, vocabulary development, persuasive argument, and creative writing. Art & Design - developing ideas and creating visual stories. Citizenship - evaluating sources for reliability and bias.
Suitable for Grades 5 and above.
⭐ WHO IS THIS FOR? ⭐
→ Teachers looking for a critical thinking activity that actually engages middle schoolers — not just keeps them quiet
→ Homeschooling families who want structured, curriculum-aligned content that doesn't feel like a chore
→ Parents who want their kids to spot when someone dodges a question by changing the subject
→ Debate coaches and gifted programs looking for supplementary materials with real depth
Designed for ages 10+ (Years/Grades 5 and above). Used successfully in middle school, high school, homeschool, and family settings.
⭐ WHAT YOU'LL RECEIVE ⭐
📥 A digital download - 20-page A4 PDF (21cm x 29.7cm), ready to print
🎨 Colour and B&W pages included
📋 Answer sheet included
🖨️ Download instantly after purchase - print as many copies as you need
⭐ WANT A PRINTED COPY? ⭐
If you'd prefer a professionally printed booklet shipped to your door, visit our store directly at duchessandbruno.com to order a physical copy.
⭐ COLLECT THE FULL SET ⭐
This is one of 24 logical fallacy activity packs in the Duchess & Bruno series. Each pack covers a different fallacy with its own unique historical story, comic, and activities. Collect them all to build a complete critical thinking library for your classroom.
⭐ WHAT TEACHERS ARE SAYING ⭐
⭐⭐⭐⭐⭐ "My kids absolutely adore the characters and story! It reminds us of horrible histories. I haven't found anything like this pack before. It's perfect for extension work and discussion." - Sandra
⭐⭐⭐⭐⭐ "This activity pack is way more fun than I expected! I wanted something that would teach critical thinking skills but I didn't think you could make that fun but this pack sure is. My kids love it and now they're asking for more." - Kylie
TERMS OF USE
This pack is for personal or single-classroom use only. Not for sharing, reselling, or commercial use. See the included Terms of Use document for full details.
NEED HELP?
If you have any trouble downloading or opening the files, contact us straight away. We'll sort it out and send you an updated file if needed.
Connect with us:
Instagram: @duchessbruno
Facebook: Duchess and Bruno
Website: www.duchessandbruno.com