The model consists of three broad dimensions that combine
to define the individual abilities of the model.
These three dimension are:


Operations can be defined as the different types of mental or intellectual activity that individuals use in their thinking processes. There are five different kinds of Operations.


Contents is defined as the type of material or information involved in mental, intellectual, or thinking activities. There are three types of Content abilities.


Products can be defined as the different levels of complexity into which information can be organized or worked with. There are six different kinds of Products.



Cognition is defined as immediate discovery, awareness, perception of information in various forms. Cognition involves all types of sensory input visual, auditory, tactile, smell and taste. It is the foundation ability for comprehending, recognizing and assimilating information. Thus, it is a highly valued ability in the school environment.


Memory is the ability to recall previously comprehended material. Recall of information takes place in response to cues similar to those with which the material was learned. The importance of memory as an intellectual ability, especially in the education process, cannot be overestimated. It is a primary ability tapped in most assessments of achievement.


Evaluation is the ability to make judgments or to reach decisions. It includes making sound judgments using foresight and effective planning. Academically, evaluation abilities are used when activities require the selection of a correct procedure, operation or principle or when analysis is required to identify specific characteristics.

Convergent Production

Convergent Production is the ability to solve problems or follow rules to generate information from given information to find a specified answer or response. It is considered expressive intelligence whereas Cognition is considered receptive intelligence. Convergent Production is the application of learned information. It is the primary ability utilized in schools. As such it is highly related to academic achievement. It includes the ability to arrive at a correct solution in math, express ideas in written and verbal forms, apply generalizations and conduct research projects.

Divergent Production.

Divergent Production is the generation of information where the emphasis is on variety and quality of output. Characteristics of Divergent Production are fluency, flexibility and originality. While it is not creativity alone it is an essential element to generate new and creative approaches to finding new solutions or new approaches in solving problems.



Figural content is concrete information. It includes real objects, non-conceptual material and spatial information. Research shows that figural content is associated with the right hemisphere of the brain.


Symbolic content involves numbers, letters, music, Morse code and all other types of coded information. This type of content information relates to representational information and appears to operate at the crossover point of the brain, connecting the two hemispheres.


Semantic content deals with words, ideas and concepts. It is abstract information and clearly related to the left hemisphere.



Units is the ability to deal with one thing at a time, i.e. a picture, a number, a word, etc. It not only involves single, whole objects but also includes the ability to see and work with the details of various material.


Classes is the ability to group things according to common properties and organize information into appropriate categories. It has two aspects – matching and conceptual grouping.


Relations ability involves knowing how various items, symbols or words are related to each other, how they are associated or seeing the connection between them.


Systems abilities involves ordered or sequenced information or material. It contains interrelated or interacting parts within the material. Systems involves underlying or implied rules which governs the sequencing or ordering of material or information.


Transformations involves modified material from one form to another form, such as an object changing positions or rewriting a sentence and retaining the original meaning. This product is an important part of creativity in all of the operations. It is essential for various types of design work, math and science, and translation of languages.


Implication involves projecting outcomes of sequences of information or action, cause and effect, logic and consequences. It implies the ability to learn from experiences. It is clearly related to Piaget’s stage of formal operations – the ability to reverse a process