Professor of mathematics and information science, she has been teaching both for 15 years at Veliki Bukovec Elementary school. She is the author of five coursebooks in computing for elementary and secondary school, and two coursebooks in mathematic for elementary school.

Lidija Kralj writes articles for ˝Entre˝ and ¨Mathematics and school˝ magazines, and is also the author of several multimedia learning software for mathematics. She is bugging her pupils with ordinary math, but entertains them with math on computers. Her professional interest is computer–aided teaching.