Five core theories of the CDP syllabus — Piaget, Kohlberg, Vygotsky, Gardner and Bloom — to explore hands-on, each with what it means in the classroom.
Jean Piaget saw children as active thinkers who build their own understanding. They form schemas (mental frameworks) and adapt them through assimilation (fitting a new experience into an existing schema) and accommodation (changing an existing schema, or forming a new one, to fit a new experience); balancing the two is called equilibration. He described four stages that every child passes through in the same order; the ages are approximate and vary a little from child to child. Slide the age to see the stage.
Learns about the world through the senses and physical actions — looking, touching, mouthing, grasping.
Repeats actions that produce interesting results, such as shaking a rattle again and again (circular reactions).
Object permanence develops: by the end of the stage, the child knows that a toy still exists even when it is hidden.
Goal-directed behaviour begins — for example, pulling a cloth to reach a toy placed on it.
Towards the end, forms mental images and can imitate an action seen earlier (deferred imitation) — the start of symbolic thought.
In class: In early childhood care, give safe, varied objects to touch, stack, shake and explore, and play games such as hiding your face or a toy and revealing it again — they build object permanence.
Preoperational stage 2–7 yrs
Symbolic thought: uses words, drawings and pretend play to stand for things — a stick becomes a horse (symbolic play).
Egocentrism: finds it hard to see things from another person's point of view.
Animism: believes non-living things are alive and have feelings — 'the moon is following me', 'the chair got hurt'.
Centration: focuses on one striking feature of a situation and ignores the others.
Irreversibility: cannot mentally run an action backwards to its starting point.
Lack of conservation: thinks there is more water after it is poured from a wide glass into a tall, narrow one.
In class: Teach through play, stories, pictures, role-play and real objects; keep explanations short and concrete, and be patient when children cannot yet take another person's point of view.
Concrete operational stage 7–11 yrs
Conservation: understands that number, length or quantity stays the same when only the shape or arrangement changes.
Reversibility: can mentally undo an action — if 3 + 4 = 7, then 7 − 4 = 3.
Classification: groups objects by one or more features and understands that a larger class can include smaller classes.
Seriation: arranges objects in order of size, length or weight.
Decentration: considers several aspects of a problem at once instead of only one.
Thinks logically, but mainly about concrete, real things; abstract or hypothetical problems are still hard.
In class: Use hands-on materials and real-life examples — bundles of sticks for place value, measuring real objects — and move step by step from concrete to abstract.
Formal operational stage 11–adult yrs
Abstract thinking: can reason about ideas such as justice, freedom, variables and proportion without needing concrete objects.
Hypothetico-deductive reasoning: forms a hypothesis and tests it systematically, changing one factor at a time.
Thinks about possibilities and 'what if' situations, not only about what is real.
Judges whether an argument is logical from its form, even when its content is imaginary.
Solves problems systematically by considering all possible combinations.
In class: Use debates, open-ended problems, projects and experiments in which students form and test their own hypotheses.
Lawrence Kohlberg studied how people reason about right and wrong by asking them about moral dilemmas. The stage is shown by the reason given, not by the decision itself. He described three levels with two stages each, passed through in a fixed order: most young children reason at the pre-conventional level, most adolescents and adults at the conventional level, and fewer people reach the post-conventional level. Every example below answers the same dilemma — Kabir finds a wallet with ₹500 and a library card in the school playground. Nobody saw him pick it up. Should he keep it or hand it in? In class, discussing such everyday dilemmas and asking 'Why?' supports moral growth.
Post-conventional level
6 Universal ethical principles orientation
Right is guided by self-chosen principles of justice, equality and human dignity that apply to everyone. When a law conflicts with these principles, the principle comes first. Kohlberg found this stage to be rare.
A child at this stage might say: “Even if there were no rule and no one would ever know, keeping it would be unfair to the owner. I'd want anyone in my place to return it, so I must do the same.”
5 Social contract orientation
Laws are seen as agreements that people make for the common good and to protect individual rights. They deserve respect, but they can be changed by agreement when they stop serving people's welfare.
A child at this stage might say: “Rules about lost property exist because we have all agreed that everyone's belongings deserve protection. The owner has a right to this money, and keeping that agreement benefits all of us.”
Conventional level
4 Law and order orientation (maintaining social order)
Right means doing one's duty, respecting authority and obeying rules and laws, because society would break down if everyone ignored them.
A child at this stage might say: “The school rule says that things we find go to the office. If everyone kept what they found, nobody's belongings would be safe.”
3 Good boy–good girl orientation (interpersonal accord)
Right is what pleases or helps others and earns their approval. Being seen as a good person — kind, loyal, trustworthy — matters most, and intentions begin to count.
A child at this stage might say: “I'll hand it in. My parents and teachers will be proud of me, and everyone will see that I'm honest.”
Pre-conventional level
2 Individualism and exchange (self-interest orientation)
Right is whatever serves one's own interest. Others count only as part of a fair deal — 'you help me, I'll help you'. The child sees that different people want different things.
A child at this stage might say: “If the owner gives me a reward, I'll return it. Otherwise, why should I bother? Keeping it gets me ₹500.”
1 Obedience and punishment orientation
An act is judged by its physical consequences: if it is punished, it was wrong. Rules are followed to avoid punishment, and those in authority are obeyed simply because they have power.
A child at this stage might say: “I should hand it in. If a teacher finds out that I kept it, I'll be punished.”
Read from the bottom rung up: each stage builds on the one below.
Lev Vygotsky held that children learn first by interacting with others — parents, teachers, peers — and then make that learning their own. In his view, good teaching works slightly ahead of development. Tap a ring to see what each zone means; the same child, Nisha of Class 2, appears in every example.
Can do alone — actual developmental level
Tasks the child can complete without any help. This level shows development that has already taken place, and it is what most tests measure.
Example: Nisha adds two-digit numbers that need no carrying, such as 23 + 14, on her own.
Can do with help — Zone of Proximal Development (ZPD)
The distance between what a child can do alone and what she can do with guidance from an adult or a more capable peer. Teaching is most effective here; support is reduced step by step as the child takes control.
Example: With bundles of ten sticks and the teacher's hint — 'Add the ones first. Do you have ten or more?' — Nisha solves 27 + 15, which needs carrying.
Beyond reach for now
Tasks too far ahead even with help. Pushing them now leads to frustration or rote copying; they come within reach once the tasks in the ZPD are mastered.
Example: Dividing a four-digit number by a two-digit number is beyond Nisha for now, even with help.
Key terms
Scaffolding
Temporary support — hints, questions, demonstrations, breaking a task into steps — given within the ZPD and withdrawn gradually as the learner becomes independent, just as scaffolding is removed once a building can stand. The term was introduced by Wood, Bruner and Ross (1976) for support of this kind; Vygotsky did not use the word himself, but the idea fits his ZPD.
More Knowledgeable Other (MKO)
Anyone who understands a particular task better than the learner — a teacher, parent, older child or a classmate who is ahead in that skill. The MKO need not be an adult.
Private speech
Children talking aloud to themselves while working on a task. Vygotsky saw it as a tool for guiding one's own thinking and actions; with age it turns into silent inner speech. Piaget had viewed the same talk as a sign of egocentrism (egocentric speech).
Social interaction
Higher mental abilities appear first between people (on the social plane) and only later within the child (on the individual plane). So discussion, group work and conversation with others drive cognitive development.
Language and thought
Language is the most important tool for thinking that culture provides. Thought and speech develop from separate roots and come together at around two years of age; after that, language shapes thinking. Piaget, by contrast, held that thought develops first and language reflects it.
Howard Gardner (Frames of Mind, 1983) argued that intelligence is not one general ability captured by a single IQ score, but several relatively independent intelligences. He named seven in 1983 and added an eighth, naturalist, in the 1990s. Every child has all of them in different strengths — so teach a concept in several ways, and never label a child by one intelligence.
Linguistic
Sensitivity to words, their sounds and meanings; skill in reading, writing, speaking and storytelling.
In class: Retell a lesson as a story, or write a letter from a river to the people who pollute it.
Logical-mathematical
Reasoning, recognising patterns, working with numbers and seeing cause and effect.
In class: Find the rule in a number pattern and predict the next term, or plan a fair test to see which paper soaks up the most water.
Spatial (visual-spatial)
Thinking in pictures; picturing shapes, space, maps and directions in the mind.
In class: Draw a map of the route from home to school, or turn a chapter into a concept map.
Bodily-kinaesthetic
Using the body skilfully and handling objects with control — as in sport, dance, acting and craft.
In class: Act out the water cycle as a role-play, or build a clay model of a landform.
Musical
Sensitivity to rhythm, pitch, melody and tone; the ability to create and remember musical patterns.
In class: Make up a song or rhythm to remember the order of the planets or a multiplication table.
Interpersonal
Understanding other people's feelings, intentions and moods, and working well with them.
In class: Do a group project with assigned roles, or help a classmate through peer tutoring.
Intrapersonal
Understanding oneself — one's own feelings, strengths, weaknesses and goals — and using this to guide one's actions.
In class: Keep a learning journal: what I found easy or hard today, why, and my goal for next week.
Naturalist
Recognising and classifying plants, animals and other features of the natural world; sensitivity to the environment.
In class: Collect fallen leaves from the school garden and sort them by shape, edge and vein pattern.
Benjamin Bloom's taxonomy (1956) arranges cognitive learning objectives from simple to complex. Anderson and Krathwohl revised it in 2001: the category names became verbs, 'Knowledge' became 'Remember', 'Comprehension' became 'Understand', and 'Synthesis' became 'Create' and moved to the top, above 'Evaluate'. Tap a layer to see its action verbs and a sample question — all on one topic, water.
1. Remember
Recognise or recall facts and basic information from memory.
listnamedefinerecallrecognisestate
Sample question: Name the three states of water.
2. Understand
Construct meaning: explain an idea in one's own words, interpret it, summarise it or give examples of it.
Sample question: This table shows how many litres each use of water in your school takes in a day and how many litres it really needs. Which use wastes the most, and what causes the waste?
5. Evaluate
Make a judgement based on criteria or evidence, and justify it.
judgejustifyassesscritiquedefendrecommend
Sample question: Two ideas are proposed for saving water in your school: repairing all leaking taps, or putting up 'Save Water' posters. Which will save more water? Justify your choice.
6. Create
Put elements together to make something new — a plan, design, story, model or solution.
designcreatecomposeplanconstructinvent
Sample question: Design a one-week plan for your class to cut water waste in the school, with a role for every group.
Basis:
J. Piaget's theory of cognitive development — J. Piaget & B. Inhelder, The Psychology of the Child (1969) · L. Kohlberg, doctoral dissertation, University of Chicago (1958); 'Stage and sequence: the cognitive-developmental approach to socialization' (1969) · L. S. Vygotsky, Mind in Society (Harvard University Press, 1978); D. Wood, J. S. Bruner & G. Ross, 'The role of tutoring in problem solving' (1976) · H. Gardner, Frames of Mind: The Theory of Multiple Intelligences (1983); Intelligence Reframed (1999) · B. S. Bloom (ed.), Taxonomy of Educational Objectives, Handbook I: Cognitive Domain (1956); L. W. Anderson & D. R. Krathwohl (eds.), A Taxonomy for Learning, Teaching, and Assessing (2001) · NCERT, National Curriculum Framework 2005; standard D.El.Ed./B.Ed. Child Development and Pedagogy texts
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