CDPC mathematics. Check

Electronic textbook "Mathematics. The account was created specifically for children of pre -school and primary school age. It helps to learn the descent of numbers and learn to count.
This educational publication fully takes into account the mental and cultural and social characteristics of children"s phenomenon of culture as a numerical expression. In the context of actions with integers, a child of pre -school and primary school age sequentially masters the features of a quantitative description of objects (phenomena) reality: numbering and score. Creates conditions for the search for new expressive means of children"s creativity associated with digital and numerical interpretation of reality.
The electronic textbook structurally consists of 16 sections that combine 155 tasks and educational animations. Most of the tasks and animations are voiced in poetic form. A friendly and intuitive interface allows you to focus on solving tasks, which makes it possible to prepare a child for school with minimal time