Childsplay is a nice learning software. Of the Childsplay/CognitionPlay/Schoolsplay family of programs, Childsplay is the one oriented at home users but can also be used in kindergarten schools.
Python and PyGame based, it provides a framework for activities that are more 'game' like: they can have animation and move. Childsplay has all the activities found in the old childsplay.

Childsplay Features:
1. Memory activities that are fun to play and at the same time learn sounds, images, letters and numbers.
2. Activities that train the child to use the mouse and keyboard.
3. Pure game activities like puzzles, pong, pacman and billiards.
4. Multilingual support, even right to left languages (via Pango).
5. Solid data logging to monitor the childrens progress; locally (SQLite) or over network (MySQL or any other db supported by SQLAlchemy).
6. Set of OpenOffice reports to print this data
7. Object oriented framework for easy activity development in Python/PyGame.
8. Good support by the developers and translators.

The license of this software is Free, you can free download and free use this kids game software.