Table 7a KCs categories to which participants offered the Double-slit experiment as an illustration (\(n= 29\); 9 KCs categories); Common KCs categories are shaded {# times the illustrations are mentioned in a profession-group}; [# times the illustration is linked to a KC category within the profession-group]. For the other 7 prominent illustrations and the KCs categories they were offered to, see Appendix A

From: The core of secondary level quantum education: a multi-stakeholder perspective