Describes the ways in which our own view of the world effects the way that we interpret information. Contends that we need to know the difference between perceptions and illusions. Discusses the world of illusions; haptic senses; adaptive adjustments; and visual illusions. (ZWH)

A structured system of visual features is seen to parallel the propositional hierarchy of operations usually associated with the parsing of algebraic expressions. Women more than men were found to depend on these visual cues. Possible causes and consequences are discussed. Subjects were secondary and college students. (Author/DC)

Discusses children's ideas about colored objects and colored shadows, with special attention to the organization of these ideas into mental models. The clarification of these models provides instructional tools that serve to assess and confront students' naive conceptions. Subjects were visitors to a science museum who engaged in interactive…

The Canadian Readiness Test Learning Rate subtest and the Auditory Reception and Spatial Relations Concepts subtests on the Experimental Reading Readiness Test show high reliability in measuring the reading readiness of beginning first graders. The Experimental Test has a high coefficient of reliability as a total test. (SB)

Describes the Agam program, a 36-unit curriculum program to introduce students to basic visual concepts and that applies visual abilities and visual thinking to learning tasks. Describes two units at the third grade level, "Ratio and Proportion" and "Numerical Intuition," and makes observations of the students' learning. (MDH)