Ilany, Bat-Sheva.

Change and invariance = a textbook on algebraic insight into numbers and shapes / by: Sinitsky, Ilya.; Ilany, Bat-Sheva.; SpringerLink (Online service) (Electronic resources)

Ratio and proportion = research and teaching in mathematics teachers' education (pre- and in-service mathematics teachers of elementary and middle school classes) / by: Ben-Chaim, David.{me_controlnum}; Keret, Yaffa.; Ilany, Bat-Sheva.; SpringerLink (Online service) (Electronic resources)