Application area of conical sections of the parabola in the area of light reflection

This work, structured in two main parts, is devoted to the parabola topic. In the first, the elements of a parabola are reviewed by linking the definition of intersection of a plane and a cone with a locus of the plane. The necessary part for calculation of the elements as a curve in space are pointed out as well as historical notes and properties of light reflection are included. In the second part, the applications of parabola conic in many parts of physics. A project based on the reflection of light is proposed that seeks to connect various subjects in line with the new educational paradigm of development of key competencies, joining different fields of knowledge.