Ilany, Bat-Sheva.

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

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