gcompris , (edited ) 
KDE's educational software for kids, GCompris, releases version 4.0 with 8 new activities.
GCompris 4.0 contains 190 educational activities and games 🎲, adding 8 new ones: "Grammar classes", "Grammar analysis", "Calcudoku", "Guess 24", "Frieze", "Read a graduated line", "Use a graduated line", and "Adjacent numbers".
All activities are translated to over 40 languages.