Educational software needs to be developed and implemented with a full understanding of the principles of learning and developmental psychology. Many new issues arise when one considers how to educate teachers to use new technologies effectively: What do they need to know about learning processes? What do they need to know about the technologies? What kinds of training are most effective for helping teachers use high-quality instructional programs? Understanding the issues that affect teachers who will be using new technologies is just as pressing as questions of the learning potential and developmental appropriateness of the technologies for children.
Assessment and feedback are crucial for helping people learn. Assessment that is consistent with principles of learning and understanding should:
Mirror good instruction.
Happen continuously, but not intrusively, as a part of instruction.
Provide information (to teachers, students, and parents) about the levels of understanding that students are reaching.
Assessment should reflect the quality of students’ thinking, as well as what specific content they have learned. For this purpose, achievement measurement must consider cognitive theories of performance. Frameworks that integrate cognition and context in assessing achievement in science, for example, describe performance in terms of the content and process task demands of the subject matter and the nature and extent of cognitive activities likely to be observed in a particular assessment situation. The frameworks provide a basis for examining performance assessments that are designed to measure reasoning, understanding, and complex problem solving.
The nature and purposes of an assessment also influence the specific cognitive activities that are expressed by the student. Some assessment tasks emphasize a particular performance, such as explanation, but deemphasize others, such as self-monitoring. The kind and quality of cognitive activities observed in an assessment situation are functions of the content and process demands of the tasks involved. Similarly, the task demands for process skills can be conceived along a continuum from constrained to open. In open situations, explicit directions are minimized in order to see how students generate and carry out appropriate process skills as they solve problems. Characterizing assessments in terms of components of competence and the content and process demands of the subject matter brings specificity to assessment objectives, such as “higher level thinking” and “deep understanding.” This approach links specific content with the