Educational multi-touch applications, number sense, and the homogenizing   role of the educator
  As part of an educational project proposed in Italian preschools, an educator followed a tested protocol proposing two chosen iPad apps to children of ages 5 to 6. Though her interventions were supposedly aimed at strengthening the number sense of the children, the result was a homogenization of their schemes, in various cases seemingly inhibiting development of number sense. 
Anna Baccaglini-Frank
math.HO