eXpresser v1-2819a

The latest version of eXpresser is now released for further testing (download migensystem-1-2819a.zip). This release comes configured to start with a familiarisation task that requires grouping. This version addresses several of the bugs of the previous release (see expresser-v1-2775a post). In addition: It shows the potential colour of the tiles in the ‘General World’  to [...]

eXpresser v1-2690

A new release is available (download migensystem-1-2690a.zip). It includes several bug fixes in the light of the 5th Teacher Advisory Meeting. Comments welcome.

eXpresser v1-2385

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 [...]

eXpresser v1-2305a

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 [...]

eXpresser v1-2044a

Release 1-2044a is now available. It includes major UI changes from previous versions. In particular most actions are now performed through context-aware menus. In addition, student’s world (left) is perceived as the area where students specify the pattern for the computer to animate in the parallel world (right). It is painted appropriately after they have [...]