I. Gaber, A. Lev and R. Zigdon. Insights and Observations on Teaching the Intermediate Value Theorem, Amer. Math. Monthly, volume 126, number 9, pages 845–849, 2019.

Romina Zigdon and Arye Lev. Dealing with the Gap between Academic Requirements and Students' Abilities, Katharsis, volume 29, 2018, In Hebrew.

G. Dror, A. Lev, Y. Roditty and R. Zigdon. On the Rainbow Connection Number of Graphs, Ars Combinatoria, volume 133, pages 51–67, July 2017.

Romina Zigdon and Arye Lev. On Teaching Mathematics in Elementary School and on Teaching in General, Katharsis, volume 26, 2016, In Hebrew.