This TED-Ed companion resource explores the science and surgical innovation behind limb-lengthening procedures. Students learn about fracture healing, distraction osteogenesis, external fixators, and modern implantable lengthening nails. This resource includes 20 rigorous discussion questions, an expanded essay prompt, and a structured debate topic with multiple viewpoints, perfect for biology, anatomy, health science, orthopedics, and medical technology units. Use it as bell-ringers, homewor