“This movie’s terrible - but we paid for it, so we’re staying till the end.” The moment your child reads it, they’ll feel the pull to keep going simply because they’ve already paid. That’s the Sunk Cost fallacy doing exactly what it’s designed to do. Once they know its name, they’ll spot it everywhere - in ads, on social media, in arguments, in politics. They can’t unsee it. That’s what this poster does. Not with a worksheet. With a single image on a wall. What You Get One full-colour A3 poster, professionally printed on 250gsm matte paper at 300dpi - ready to hang the moment it arrives. The Duchess & Bruno illustration, the fallacy title, a plain-English definition, and a real-life example you’ll recognise instantly. Bonus B&W colouring version - because the one you colour in is the one that sticks. Prefer a Digital Copy? Just switch the toggle from Printed Poster to Digital Download. You’ll get an instant printable PDF in all four sizes - A4, A3, US Letter (8.5×11in) and US Tabloid (11×17in) - at 300dpi, so you can print it sharp at home or at a print shop, as often as you like for your classroom, homeschool room, or wall at home. Why This Poster Is Different Every illustration in the Duchess & Bruno series is hand-drawn by a real artist. No AI. No clip art. No templates. You’ll see the difference the moment you open it. Rated 5.0 on Etsy and TPT. Perfect For Parents raising sharp, questioning kids. Homeschoolers building real critical-thinking skills. And curious individuals who simply love a good argument and want to spot the tricks a mile off. How to Use It Hang it in the classroom, the homeschool room, a home office, or on a bedroom door. Every time you walk past it, you’re a little more fallacy-proof. When someone keeps going only because of what they’ve already spent, you’ll know exactly what’s happening - and exactly what to call it. Curriculum Alignment When your principal (or your homeschool co-op) asks why you bought it - here’s your answer. 🇦🇺 Australia · Years 5+ · Critical & Creative Thinking, English 🇺🇸 USA · Grades 4+ · English Language Arts 🇬🇧 UK · Key Stages 2+ · English, Citizenship Collect the Series This is one of 24 logical fallacy posters in the Duchess & Bruno series. These are the 24 fallacies everyone should be able to spot - and name. Terms of Use For personal, family, or single-classroom use only. Not for sharing, reselling, or commercial use.