Like Rationale, Argumentative lets users create "argument maps," visual displays of the reasoning involved in creating a good argument. It's great for students studying persuasive writing, logic, debate, speech, social studies, and any subject that requires essay writing. Operating System: Windows.
GraphCalc does everything a handheld graphing calculator would do, and it's easy to use. As the Web site says, "GraphCalc can be your first, last, and only line of offense against the mathematics that threaten to push you over the brink of insanity. It slices, dices, shreds and purees functions that leave other calculators wondering what hit them." Operating System: Windows, Linux.
This command-line tool creates both 2D and 3D graphs from mathematical functions. Because it doesn't have a GUI, it's not as easy to use as most of the other graphing apps, but it does have extensive help available on the Web site. Operating System: Windows, Linux, Unix, OS X, and others.
This calculator doesn't graph, but it does perform a multitude of scientific operations using very large numbers. Unlike the Scientific Advantage product, it doesn't keep track of units, however. Operating System: Windows.
Calling itself "a computer algebra system," Maxima graphs in 2D and 3D and performs differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors. It offers a barebones graphic interface, or you can run it in command line mode. Operating System: Windows, Linux, OS X.
Need a fun way to teach students new vocabulary words? This Java-based app lets you create Bingo Cards easily using your bank of images. Operating System: OS Independent.
Developed by a music student, this app helps users learn music theory concepts and improve their ear. It also includes a basic score editor for composition students. Operating System: Windows, Linux, OS X.
31. GNU Solfege replaces Earmaster Want to improve your musical ear? Like Earmaster, GNU Solfege offers a number of exercises that teach students to identify and sing intervals, recognize rhythms patterns, sing scales and chords, and identify harmonic progressions. Operating System: Windows, Linux, OS X.
Step doesn't have as many features as Yenka, and it isn't as pretty, but it does a good job of demonstrating the effect of physical forces. To use it, you simply place some virtual objects in the demonstration area, add some forces and see what happens. (Note that in order to use Step on Windows, you'll have to download KDE for Windows.). Operating System: Windows, Linux.
Used by hundreds of organizations in 93 countries, Claroline makes it easy to upload course documents, create online exercises, develop a learning path, coordinate group work, and track student progress. It also includes a calendar, wiki, chat, and the other features you would expect in an eLearning system. Operating System: Windows, Linux, OS X.
Tremendously popular, Moodle boasts more than 35 million users on more than 48,000 eLearning sites, and the Web site includes a substantial amount of support. It can be used to run a complete online class or to augment a face-to-face learning situation. Operating System: Windows, Linux, OS X.
eFront is available in both a free, community edition, or a commercial edition that provides paid support. One of the more attractive eLearning systems, its designers specifically intended to create an easy-to-use and aesthetically pleasing interface. Operating System: Windows, Linux.
Widely used internationally, ILIAS supports multiple languages. It includes all of the standard LMS modules, plus the ability to accept and track payment for courses. The Web site includes a helpful demo of the application's features. Operating System: Windows, Linux.