More than 10 years ago The Web Production in cooperation with Ernst Klett Grundschulverlag GmbH successfully released two CD-Roms for schools by the name Blitzrechnen. All programming were done in Macromedia Director.
Now 4th edition of Blitzrechnen 1/2 was programmed in our own C++ cross-platform engine.
Blitzrechnen 3/4 will be released at the end of this year.
There are arithmetical tasks for pupils of 1st/2nd and 3rd/4th grade on the CD-Roms. Tasks are provided either with iconic or with symbolic mode, so that it is easier for pupils to understand them and accomplish correctly.
These box products contain many useful features for German teachers. Teachers can create class lists, check tests, analyze pupil's results etc.