Students then describe what they observe as similar and what they observe as different. The idea is for students to find a pattern of characteristics that distinguishes the examples from the non-examples.
Students describe their thinking and share their strategies.
After constructing a pattern for the common set of characteristics of the labeled examples, students then use their developed pattern to identify unlabeled samples as examples or non-examples. The process of comparing and contrasting information seems to help students retain concepts. The purpose of this study is to construct a concept attainment task using a HyperCard stack and videodisk images. To use the computer to control the images on the videodisk, the first method requires more hardware such as a computer, a videodisk player and probably an extra monitor. Although a laser disc can easily hold more high resolution images and graphics, it takes more work to develop and execute a program on the computer to display images on the monitor from a laser disc player.