Evaluation-modification loops in the the design process used by students building technological devices

This research is based on observations of and interviews with five seventh grade students during problem solving activities in a technological context. When left to their own devices in an environment rich in three-dimensional materials (Lego components), they follow Evaluation-Modification Loops. The research is based on: 1. observations during class activity over one semester (12 meetings) 2. open interviews with each student during class activities. The study focused on two issues: 1. identifying the characteristics of the design process of technological devices 2. students’ attitude towards their original design goals during the process of designing technological devices. An Evaluation-Modification Loops model containing decision making space was developed based on the observations and interviews.