eXpresser v1-2385

April 30, 2009

Exciting new release (download migensystem-1-2385a.zip) that includes an implementation of tiles with negative colours. Turn these tiles into a pattern and add them on top of any overlaps you have. The overlaps are ‘erased‘ !

To colour your patterns in the parallel world, you need to subtract the number of tiles of a negative coloured pattern from the total  number of positively colour tiles. Confusing ? It may be, but the functionality provides an opportunity for interesting discussions with students.

What do you think ?

This version also replaces completely the editing of expressions with the menu-driven editing.


eXpresser v1-2305a

April 16, 2009

A new version of the system was released for testing with students here at LKL (download migensystem-1-2305a.zip).

This version employs the metaphor of locked/unlocked numbers for representing specific vs general numbers. That is, unlocking turns the number essentially to a general number. It lets you change its value but it also lets the system change its value in the  “General World“. The animation then in the parallel world is the way to evaluate your construction.

Comments?

Note: This version also includes a prototype implemention of the help request mechanism through drop-down menus that we envisage students will use to ask help from the system. At the moment it is used for wizard-of-Oz studies (so don’t expect any help, the wizard is away ;-) )