Teaching software

Here a link with the offer to download different education programms for free in German language:
http://www.computerbild.de/cb-Downloads-Schule-Bildung-Wissen-1918630.html?s_category=40262

Here for example a screenshot of the programm "Mathe-perfekt 1.Klasse":

Daniel is frequently asking to use to programm and is getting better fast in my personal worst subject at school-maths.:)
He've to catch up in this subject anyway,because he's in reading or writing still far better as in +-x/.