reciteword is education software developed using GTK 2 to help people study English and recite English words. It has a very beautiful interface to make reciting words an interesing thing. It can change skins, and comes with many sound events, including over 400 books for you to choose. It also includes a dictionary, which can also run separately.
repasa is a set of three kind of tools: For creation of contents directly in the XML format of repasa or in other file formats (DocBook and LaTeX) following some conventions, for checking the contents, and for studying the contents and registering progress. The contents can be specified with definitions, classifications for the definitions (possibly along with exercises), and sequences of study. It is especially well suited to organize information according to the current legislation for education in schools of Colombia.
rmachine is a simulator for register machines (in the context of complexity theory), complete with a GUI and a Python module to be used in your programs. The machine ("RAM") is equal to Turing machines in its computional power. It has theoretically unlimited memory (but is limited in practice by your computer's memory).
Schoolsplay is a collection of educational activities for children. Schoolsplay resembles the approach taken by the Childsplay and Gcompris projects but is designed to be less like a collection of games. Because it's aimed at schools, it also provides data collection to produce reports about a child's results per activity. The data will be accessible to the teacher by means of an admin module. The design is modular and the activities and skins are grouped in packages.
sigue is composed of tools that allow users to track progress of students in one or more subjects and to generate reports periodically. It is tailored to Colombian schools, and includes an interface in PHP to facilitate the grading process (for teachers), and scripts to print reports for parents in LaTeX.