This paper identifies projects that have successfully applied the systems approach to instructional design and points to situations where that approach may be inappropriate. A method which relies on strict sequencing of objectives and means may not be easily adaptable for individualized programs in which means and ends emerge from instructional…

A sequential-developmental approach to the assessment of individuals from the earliest sensorimotor period through the level of abstract reasoning is discussed. The assessment is hierarchically sequenced and is concerned with how and why individuals process information. The assessment procedures provide practical data on levels of development. (JN)