When distance means money
Jozef Doboš, Zbigniew Piotrowski · International Journal of Mathematical Education in Science and Technology · 1997
In this paper, we offer a natural way of acquainting the student with the notion of the distance function. Real‐life situations and graphs of ‘easy‐to‐see’ step functions should appeal to students’ intuition and make the topic of distance‐preserving functions easily accessible.