This study was designed to test preschoolers' thinking about strategies and the relationship between strategy selection and performance through the use of computer-presented puzzle tasks. A total of 61 children between the ages of 3 and 5 years were observed to see whether they used trial and error, model consultation, or a mixed strategy to solve animated puzzles. The children were divided into four groups, with each group receiving different levels of feedback before or during the testing by one of two teachers who had instructed them in the mechanics of computer-presented puzzles, and who were blind to the research hypothesis. It was found that the majority of children resorted to the trial and error method. Although a trial and error approach required more trials, it took a shorter period of time than the model consultation or mixed strategy. It appeared that the children were motivated to find the quickest solution to the puzzle rather than the most effective strategy. Contains 38 references. (MDM)