AbulEdu Calcul Mental is a software tool that trains children in mental calculation as stipulated by the French Ministry of Education for primary schools. Activities include addition, subtraction, multiplication of integers, addition tables (+2 to +9), times tables (x2 to x9), additional additives (to 10, to 100, to 1000), multiples (of 5, 10, 15, 20, 25 and 50), and orders of magnitude (with additions, subtractions, and multiplications). There is also an editor and selective launcher.
Aciqra is a night sky simulator to show the sky and celestial objects. It uses the highly precise Aloac program to calculate highly accurate positions for planets, stars, comets, and everything else in the sky for thousands of years into the future. It can load a variety of catalogs and even custom ones with a bit of extension.
Adapro is a customizable multi-user word processor originally geared towards users with a learning disability or developmental disorder, such as dyslexia or autism. Hence its array of assistive features, including inline representation of words through pictograms, a virtual keypad with configurable phrase buttons, a dyslexia-friendly font, PBDQ, and high-contrast modes. The editing interface can be customized on a per-user basis, and documents produced with it can be exported to RTF for further editing in OpenOffice or other software. If Java 6 is on the system, it doesn't even require installation.