Description
If I had to reduce all of educational psychology
to just one principle, I would say this: The most important single factor
influencing learning is what the learner already knows. Ascertain this
and teach him accordingly" (Ausubel,
Educational Psychology: A Cognitive View, 1968)
Ausubel's theory primarily addresses cognitive learning,
that is, the acquisition and use of knowledge. The theory also relates
to affective learning and has implications for psychomotor learning,
since physical activity requires some cognitive processing. Romiszowksi
(1999) describes research on the stages of learning physical skills.
Stage 1 involves the use of cognitive skills for acquiring knowledge
of what should be, to what purpose, in what sequence, and by what means.
The key idea in Ausubel's theory is the concept of
meaningful learning." Meaningful learning, according to Ausubel,
is a process controlled by the learner in which new information is related
to an existing relevant aspect of the learner's knowledge structure.
In other words, the learner connects the new piece of information to
information already known. Call it assimilation
of new information into existing knowledge frameworks.
The process of assimilation strengthens the learner's
overall knowledge structure and in particular, the linkages connecting
the new knowledge and existing knowledge. The result is an improved
capacity to recall that new information, thus making the learning process
of obtaining the new information, meaningful. Meaningful learning is
comprised of three components: learner's relevant prior knowledge, meaningful
material, and learner choice to use meaningful learning.
Meaningful learning vs. rote learning. Rote learning
has negative consequences for acquisition of organized knowledge that
facilitates new learning and creative problem solving. Rote learning
often leaves out the underlying reasons for rules, practices, and procedures,
which facilitate individual thinking and creative application of knowledge
to novel situations.
The Assimilation Theory of Meaningful Learning has six basic principles:
Derivative
subsumption
Describes the situation in which
the new concept (information) that is learned is an instance or example
of a concept that has already been learned. For example, a learner has
acquired a basic concept such as "fish," where they know that a fish
has scales, fins, gills, and lives in the water. Next, they learn about
a kind of fish they have never seen before—a clown fish—that
conforms to their previous understanding of fish. The learner's new
knowledge of a clown fish is attached to their concept of fish, without
substantially altering that concept. So, an Ausubelian would say that
the learner had learned about clown fish through the process of derivative
subsumption.
Correlative subsumption
Now, let's suppose the learner encounters a new kind of fish that doesn"t
have fins, like an eel. In order to accommodate this new information,
they have to alter or extend their concept of fish to include the possibility
of no fins. They have learned about this new kind of fish through the
process of correlative subsumption. In a sense, it could be implied
that this is more "valuable" learning than that of derivative subsumption,
since it enriches the higher-level concept.
Obliterative
Subsumption
It's a fact that learners will
forget information sometime after it is learned. In Ausubel's theory,
the variation in the amount of recall depends mostly on the degree of
meaningfulness associated with the learning process. By contrast, information
learned by rote cannot be appropriately subsumed in the learner's cognitive
structure. Information that is learning meaningfully can usually be
recalled weeks and months later.
Progressive Differentiation
As meaningful learning happens,
development and elaboration of subsuming concepts naturally occurs.
In other words, it is a process of refinement of the concept meanings
in cognitive structure, which adds more precision and specificity to
those concepts. Call it progressive differentiation. Ausubel
believes concept development occurs best when the most general, most
inclusive concepts are introduced first and then these concepts are
progressively differentiated, that is, elaborated with more detail and
specificity. For example, "fish" is an inclusive concept with classes
(bony skeleton, cartilage skeleton) and subclasses. Reigeluth based
his Elaboration Theory on this principle.
Integrative
Reconciliation
Integrative reconciliation is another
form of cognitive differentiation in which crosslinkages that are formed
and new interrelationships are established between concepts in the cognitive
structure. For example, dolphins live in water and have other attributes
associated with the concept "fish," but are mammals instead and therefore
have more in common with land-based mammals than fish.
Superordinate
Learning
Superordinate learning occurs when
new concepts are constructed that pull together and integrate large
domains of knowledge that were not previously recognized as intimately
related. For example, a learner was well acquainted with sharks,
rays, and skates, but did not know, until they were taught, that
these were all examples of fish with cartilaginous
skeleton. In this case, the learner already knew a lot of examples
of the concept, but did not know the concept itself until it was taught
to them. This is superordinate learning.
Advance Organizers
Ausubel is perhaps best known for
his idea of an advance organizer, but this is only a small part of the
assimilation theory. An advance organizer helps learners bridge the
gap between knowledge they already possess and new knowledge to be learned.
To be effective, advance organizers must meet two requirements: 1) the
learner's specific existing relevant conceptual and propositional knowledge
must be identified. And 2) the new knowledge must be properly organized
and sequenced to optimize the learner's ability to make the connection
of new knowledge to existing concepts and propositions. [A tough task!].
In brief, advance organizers are effective because they activate the
learner's prior knowledge.
Issues
Ausubel does not advocate discovery learning or embrace
the new trends in educational practice for learner-centered instruction,
he supports the use of direct instruction methods, such as lecture.
He argues that large bodies of content knowledge are best obtained through
this type of learning.
He does acknowledge problem-solving abilities must
be taught, but these are secondary to the schools" responsibility to
transmit content.
Ausubel advocates reception learning, a highly individual
activity, which conflicts with the recent drive for more active student
involvement.
He does not stress the social aspects of learning,
nor does he extend a student's existing cognitive structure to include
prior experiences.
Relevance to ISD
Ausubel gave descriptive meaning to the concept "meaningful
learning" and offered a sensible construct for how educators could achieve
it.
Ausubel's work influenced Novak's concept mapping strategies
and Reigeluth's Elaboration Theory, which are both useful for helping
the learning grasp and organize the broad and narrow concepts
related to a knowledge domain.
By implementing Ausubel's Advance Organizer Model,
teachers can assist their students in developing stable, clear concepts
and propositions in their cognitive structures, which will used as anchors
for future knowledge.
Merlin Wittrock's (1974a) Generative
Learning Model and resultant Generative Learning Strategies is based
the principles of meaningful learning.