Vygotsky disagreed with Piaget's view of cognitive development occurring through individual discovery. Vygotsky believed that cognitive development depends greatly on social interactions and cultural influences. He argued that language and social interactions play a key role in guiding children's private speech and thinking, which eventually becomes internalized. Vygotsky also emphasized the importance of assisted learning, where more knowledgeable others such as parents or teachers provide scaffolding to help children solve problems within their zone of proximal development, the tasks they cannot do alone but can do with guidance. This view suggests instruction should involve more than independent discovery, and include guidance, collaboration, and conversations to promote complex learning.

1. VYGOTSKY’ S ALTERNATIVE TO PIAGET
Psychologists today recognize that the child’ s culture shapes cognitive
development by determining what and how the child will learn about the world.
For example, young Zinacanteco Indian girls of southern Mexico learn
complicated ways of weaving cloth. In Brazil, without going to school, children
who sell candy on the streets learn sophisticated mathematics in order to buy
from wholesalers, sell, barter, and make a profit. Cultures that prize cooperation
and sharing teach these skills early, whereas cultures that encourage competition
nurture these abilities in their children. The stages observed by Piaget are not
necessarily “natural” for all children. These stages reflect to some extent the
expectations and activities of the children’ s culture.
Whereas Piaget described the child as a little scientist, constructing an
understanding of the world largely alone, Vygotsky (1978, 1986) suggested that
cognitive development depends much more on the people in the child’ s world.
Children’ s knowledge, ideas, attitudes, and values develop through interactions
with others. Vygotsky also believed that culture and language play very important
roles in cognitive development.
The role of language and private speech
In Vygotsky’ s mind, language is critical for cognitive development. Language
provides a means for expressing ideas and asking questions, and it provides the
categories and concepts for thinking. When we consider a problem, we generally
think in words and partial sentences. Vygotsky placed much more emphasis than
Piaget on the role of language in cognitive development. In fact, Vygotsky
believed that language in the form of private speech (talking to yourself) guides
cognitive development.
Vygotsky and Piaget’ s views compared
If you have spent much time around young children, you know that they often talk
to themselves as they play. Piaget called children’ s self-directed talk “ego-centric
speech.” He assumed that this egocentric speech is another indication that young
children can’ t see the world through the eyes of others. They talk about what
matters to them, without taking into account the needs or interests of their
listeners. As they mature, and especially as they have disagreements with peers,
Piaget believed, children develop socialized speech. They learn to listen and
exchange ideas.
NOTE: Private Speech- Children’ s self-talk, which guides their thinking and
action. Eventually these verbalizations are internalized as silent inner speech.
Vygotsky had very different ideas about young children’ s private speech. Rather
than being a sign of cognitive immaturity, Vygotsky suggested that these
mutterings play an important role in cognitive development. The children are
communicating – they are communicating with themselves to guide their
behaviour and thinking. In any preschool room you might hear 4 or 5-year-olds
saying, “No, it won’ t fit. Try it here. Turn. Turn. Maybe this one…” while they do a
puzzle. As these children mature, their self-directed speech goes underground,
changing from spoken to whispered speech and then to silent lip movements.
Finally, the children just “think” the guiding words. The use of private speech

2. peaks at around 5 to 7 years of age and has generally disappeared by 9 years of
age. Brighter children seem to make this transition earlier.
Vygotsky identified this transition from audible private speech to silent inner
speech as a fundamental process in cognitive development. Through this
process the child is using language to accomplish important cognitive activities
such as directing attention, solving problems, planning, forming concepts and
gaining self-control. Research supports Vygotsky’ s ideas. Children tend to use
more private speech when they are confused, having difficulties, or making
mistakes. Inner speech not only helps us solve problems but also allows us to
regulate our behaviour.
Differences between Piaget’ s and Vygotsky’s theories of Egocentric or
Private Speech
PIAGET VYGOTSKY
Developmenta
l Significance
Represents an inability to
take the perspective of
another and engage in
reciprocal communication.
Represents externalized
thoughts its function is to
communicate with the self for the
purpose of self-guidance and
self-direction.
Course of
Development
Declines with age Increases at younger ages and
then gradually loses its audible
quality to become internal verbal
thought.
Relationship to
Social Speech
Negative; least socially
and cognitively mature
children use more
egocentric speech.
Positive; private speech
develops out of social interaction
with others.
Relationship to
Environmental
Contexts ----------------------
Increases with task difficulty.
Private speech serves a helpful
self-guiding function in situations
where more cognitive effort is
needed to reach a solution.
Assisted Learning
Language plays another important role in development. Vygotsky believed that
cognitive development occurs through the child’ s conversations and interactions
with more capable members of the culture, adults or more able peers. These
people serve as guides and teachers, providing the information and support

3. necessary for the child to grow intellectually . The adult listens carefully to the
child and provides just the right help to advance the child’ s understanding. Thus,
the child is not alone in the world “discovering” the cognitive operations of
conservation or classification. This discovery is assisted by family members,
teachers and peers.
Jerome Bruner called this adult assistance “scaffolding” (Wood, Bruner and
Ross, 1976). The term aptly suggests that children use this help for support while
they build a firm understanding that will eventually allow them to solve the
problems on their own. Assisted learning, or assisted discovery in the classroom,
involves giving information, prompts, reminders, encouragement at the right time
and in the right amounts, then gradually allowing the students to do more and
more on their own. Cognitive self-instruction is an example of assisted learning.
For Vygotsky, social interaction and assistance were more than methods of
teaching, they were the origin of higher mental processes such as problem
solving. He assumed that, “the notion of mental function can properly be applied
to group as well as individual forms of activity” (Wertsch, 1991,p.27). For
example, Vygotsky believed that groups could “remember”. Consider this
example:
A six-year-old has lost a toy and asks her father for help. The father asks her
where she last saw the toy; the child says “I can’t remember.” He asks a series of
questions – did you have it in your room? Outside? Next door? To each question,
the child answers “no”. When he says “in the car?” she says “Ithink so” and goes
to retrieve the toy. (Tharp and Gallimore, 1988, p.14)
Who remembered? The answer is really neither the father nor the daughter, but
the two together. The remembering and problem solving was in the interaction,
but the child may have internalized strategies to use next time something is lost.
At some point, the child will be able to function independently to solve this kind of
problem. Vygotsky believed that all higher mental functions have their origins in
social interactions. Like the strategy for finding the toy, these higher functions
appear first between a child and a “teacher” before they exist within the individual
child (Kozulin, 1990).
How can you know what kind of help to give and when to give it? One answer
has to do with the student’s zone of proximal development.
NOTE: Zone of Proximal Development – Phase at which a child can master a
task if given appropriate help and support.
According to Vygotsky, at any given point in development there are certain
problems that a child is on the verge of being able to solve. The child just needs
some structure, clues, reminders, help with remembering details or steps,
encouragement to keep trying, and so son. Some problems, of course, are
beyond the child’ s capabilities, even if every step is explained clearly. The zone
of proximal development is the area where the child cannot solve a problem
alone, but can be successful under adult guidance or in collaboration with a more
advanced peer (Wertsch, 1991). This is the area where instruction can succeed,
because this is the area where real learning is possible.
Vygotsky’ s theory suggests that teachers need to do more than just arrange the
environment so that students can discover on their own. The students should be
guided by explanations, demonstrations, and work with other students –
opportunities for cooperative learning. Having a student work with someone who

4. is just a bit better at the activity would also be a good idea. In addition, students
should be encouraged to use language to organize their thinking, to talk about
what they are trying to accomplish.
Instructional Conversations
One implication of Vygotsky’s theory of cognitive development is that important
learning and understanding require interaction and conversation. Students need
to grapple with problems in their zone of proximal development, and they need
the scaffolding provided by interaction with a teacher or other students.
Instructional conversations are instructional because they are designed to
promote learning, but they are conversations, not lectures or traditional
discussions.
Direct observations reveal that teachers do most of the talking in classrooms …
In over half the interactions that teachers have with students, students do not
produce any language … When students do respond, typically they provide only
simple information recall statements. This pattern of teacher/student interaction
not only limits the student’ s ability to engage in more complex learning.
(Ramirez, Yuen, and Ramey, 1991, p. 8)
Instructional conversations are an alternative to this dominance of teacher talk.
The teacher’ s goal is to keep everyone engaged in a substantive discussion. The
teacher is a guide, helping students construct their own understanding.