The idea for this work came from experience acquired through International Summer Schools on Visual Mathematics (in Eger 2013. and in Belgrade 2014.) in the frame of the TEMPUS IV. Our main idea was to join thematics in three school subjects: mathematics, physics and art, and to find corresponding mathematical models. In the field of isometric transformations and analytic geometry, math is connected with physics and art through plane mirrors, mirror curves and lot of other interesting phenomena and examples in everyday situations. We presented this work on a school lesson through practical work of our students.