This paper presents part of an evaluation of a new children's programming environment, developed by Apple Computer Inc. for 10-13 year old children. We studied 56 children, generally working in groups of 2-3, using K.idSim ™ for between 2-12 hours, over a period of between 2 days and 3 weeks. The results show that children of this age can readily learn to master the programming environment, and that they greatly enjoy using the system-indeed in most cases it clearly fired their imaginations. However, questions remain about the level of programming abstractions that they were able to understand. PROGRAMMING ISSUESAt CHI'92 a special workshop on end-user programming was held (see Gray et al, 1993), at K. Nordby et al. (eds.), Human-Computer Interaction

No abstract