This document discusses key terms and concepts related to curved mirrors, including the center of curvature, vertex, radius of curvature, principal axis, aperture, principal focus, and focal length. It also provides four rules for how rays of light interact with curved mirrors: 1) a ray through the center of curvature is reflected back along itself, 2) a parallel ray is reflected through the principal focus, 3) a ray through the focus is reflected parallel to the principal axis, and 4) a ray hitting the vertex is reflected at an equal angle. The problem asks how images are formed in curved mirrors, and provides materials and learning stations to experiment with concave and convex mirrors.