Open Source School

Tux Math

"Tux, of Math Command" is a math drill game starring Tux, the Linux Penguin. Lessons are included from simple number typing through addition, subtraction, multiplication, and division of positive and negative numbers. It is intended for kids ~4-10.

KBruch is a small program to practice calculating with fractions and percentages. Different exercises are provided for this purpose and you can use the learning mode to practice with fractions. The program checks the user's input and gives feedback.

Kig is an interactive mathematics software for learning and teaching geometry. It allows to explore mathematical figures and concepts using the computer and also can serve as a drawing tool for mathematical figures. Constructions can be made with points, vectors, lines, and polygons and all elements can be modified directly by using the mouse. Kig helps teachers and students to make conjectures and to understand how to prove geometric theorems.

KmPlot is a program to plot graphs of functions, their integrals or derivatives. The graphs can be colorized and the view is highly configurable, is scalable, and can be zoomed. The program features a powerful mathematical parser, different plot types (cartesian, parametric, polar, implicit, differential), and provides simple mathematical tools like for finding maximum/minimum of a function. Parametrized functions can be visualized by adjusting the variable parameter via a slider. Plots can be exported as bitmap format pictures (BMP, PNG) and can be printed.

Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation). Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (GTK, Qt, and CLI).

Cantor is a front-end to powerful mathematics and statistics packages. Cantor integrates them into the KDE Platform and provides a nice, worksheet-based, graphical user interface. It supports environments for KAlgebra, Lua, Maxima, R, Sage, Octave, Python, Scilab, and Qalculate!

KAlgebra is an application that can replace your graphing calculator. It has numerical, logical, symbolic, and analysis features that let you calculate mathematical expressions on the console and graphically plot the results in 2D or 3D. KAlgebra is rooted in the Mathematical Markup Language (MathML); however, one does not need to know MathML to use KAlgebra.

Rocs is a Graph Theory IDE for designing and analyzing graph algorithms. It provides an easy to use visual editor for creating graphs, a scripting engine to execute algorithms, and several helper tools for simulations and experiments. Algorithms are specified in JavaScript.

Artikulate is a pronunciation trainer that helps improving and perfecting a learner's pronunciation skills for a foreign language. It provides courses with native speaker recordings for several training languages. The learner downloads those courses, selects a category of phrases to train, then starts with recording her/his own voice when speaking the phrases and comparing the results to the native speaker's recordings by listening to both. By adjusting and repeating the own pronunciation, the learner can improve his/her skill.

Kanagram is a game based on anagrams of words: the puzzle is solved when the letters of the scrambled word are put back in the correct order. There is no limit on either time taken, or the amount of attempts to solve the word. It features several included word lists, a hints-and-cheats help system, a word list editor, and allows for updating and distributing wordlists via KNewStuff. The interface is scalable and appropriate for children.

KWordQuiz is a general purpose flash card program. It can be used for vocabulary learning and many other subjects. It provides an editor and five different flashcard quiz modes. It uses the KVTML file format and contributed files can be downloaded from within the application.

Parley is a vocabulary trainer. It helps you to memorize your vocabulary, for example when you are trying to learn a foreign language. It supports many language specific features, but can be used for other learning tasks as well. It uses the spaced repetition learning method, which makes learning optimal. Vocabulary collections can be downloaded by "Get Hot New Stuff" or created with the built-in editor.

LabPlot is a FREE, open source and cross-platform Data Visualization and Analysis software accessible to everyone. LabPlot provides an easy way to create, manage and edit plots. It allows you to produce plots based on data from a spreadsheet or on data imported from external files. Plots can be exported to several pixmap and vector graphic formats.

KStars is freely licensed, open source, cross-platform Astronomy Software by KDE.

It provides an accurate graphical simulation of the night sky, from any location on Earth, at any date and time. The display includes up to 100 million stars, 13,000 deep-sky objects,all 8 planets, the Sun and Moon, and thousands of comets, asteroids, supernovae, and satellites.

For students and teachers, it supports adjustable simulation speeds in order to view phenomena that happen over long timescales, the KStars Astrocalculator to predict conjunctions, and many common astronomical calculations.

Kalzium is a program that shows you the Periodic Table of Elements. You can use Kalzium to search for information about the elements or to learn facts about the periodic table. It provides an overview of the important data (like melting points, electron affinity, electron negativity, electron configuration, radii, mass, ionisation energy), an isotope table, and different colored views of the periodic table (separation of the different blocks, year simulator, temperature simulator). It contains tools to visualize the spectral lines of each element, a molecular weight calculator, a 3D molecule editor, and an equation solver for stoichiometric problems.

Step is an interactive physical simulator. It allows you to explore the physical world through simulations. It works like this: you place some bodies on the scene, add some forces such as gravity or springs, then click Simulate and Step shows you how your scene will evolve according to the laws of physics. You can change every property of the bodies/forces in your experiment (even during simulation) and see how this will change evolution of the experiment. With Step you cannot only learn but feel how physics works!

KTechlab is an IDE for microcontrollers and electronics designed to be as easy to use and unintrusive as possible.

RKWard aims to become an easy to use, transparent frontend to R, a powerful system for statistical computation and graphics. 

KTurtle is an educational programming environment for learning how to program. It provides all programming tools from its user interface.

KAlgebra is an application that can replace your graphing calculator. It has numerical, logical, symbolic, and analysis features that let you calculate mathematical expressions on the console and graphically plot the results in 2D or 3D.

OpenStreetMap is a map of the world, created by people like you and free to use under an open license.

KGeography is a geography learning tool, which allows you to learn about the political divisions of some countries (divisions, capitals of those divisions and their associated flags if there are some).

Marble is a virtual globe and world atlas — your swiss army knife for maps that you can use to learn more about the Earth and other planets.

Explore the neighborhood with Marble's rich set of city and street level maps. Search for addresses and places of interest. Marble takes care of querying various search backends and presents their results in a unified view. Calculate pedestrian, bike and motorcar routes with ease — online and offline, with an arbitrary number of via points.

BEHAIM

The oldest existent globe of the Earth. Martin Behaim and collaborators created the globe around 1492 at the time of Columbus' first sea travel to the west.