Tools to aid learning reusability

Sofiwarz development can be facilitated by rhe use of tools within the development environment. In tlds paper we investigatethe use of ~oolswithinthedevelopmentenvironment lo improve learning. Specifically, we are in~erestcdin mols that support our approach 10 leaching design through emphasizing re.usabilhy.W discuss criteriafor evaluating such mols, presentprototypesof two tools we havedeveloped,anddiscussour experience.