The Quantum Spin-Off project links secondary school students to high-tech quantum physics research and entrepreneurship. It is funded by the European Commission and involves schools in Belgium, Estonia, Greece, and Switzerland. Through the project, each class is partnered with a quantum physics researcher and learns about fundamental and applied quantum research. Students visit research labs and spin-off companies, learn the basics of entrepreneurship, and develop their own ideas for socially useful applications of quantum technology. They present their ideas in a national contest. The role of teachers is crucial in supporting students throughout the project. Learning materials and teacher training opportunities are provided.