Nidus

Theory studio

Lenses, not gospels

Piaget, Vygotsky, Erikson, attachment, Bandura, Gardner, embodied cognition — each one answers a different question. Blend them. Every page ends in the room, not in a citation.

Jean Piaget · 1896–1980

Cognitive stages

Children are not miniature adults. They construct knowledge through action, and they think in qualitatively different ways at different ages.

Lev Vygotsky · 1896–1934

Sociocultural theory & ZPD

The mind is social first. What a child can do today with help, they can do tomorrow alone — that strip is the Zone of Proximal Development.

Erik Erikson · 1902–1994

Psychosocial crises

Each age has a social-emotional job. If it goes well, a virtue grows. If it goes badly, a residue of doubt, shame, or inferiority tags along.

Bowlby & Ainsworth · 1950s–

Attachment theory

A child who knows they can return to you is a child who can leave you to explore. Security is not clinginess — it is a base camp.

Albert Bandura · 1925–2021

Social learning & self-efficacy

Children learn by watching, and they attempt what they believe they can do. Your example and their self-efficacy are half the curriculum.

Urie Bronfenbrenner · 1917–2005

Ecological systems

A child is nested: family, class, parents' work, culture, and time. Teaching the child without seeing the nest is guessing.

Howard Gardner · 1983–

Multiple intelligences

Intelligence is more than a verbal-math score. Children have different ways of being smart — and schools often grade only two of them.

Embodied cognition · 1990s–

The thinking body

The mind is not a computer on a stick. Gesture, balance, and movement are part of thought — not decoration around it.

Executive function research · 1990s–

The brain's air-traffic control

Working memory, inhibition, and cognitive flexibility — the trio that lets a child wait, switch, and hold a plan — grow slowly and love practice.

Theory of mind research · 1980s–

Other minds

Around four to five, many children realize that other people can hold beliefs that are false — a hinge for empathy, lying, secrets, and stories.

Dynamic systems · 1990s–

Development as a moving system

Skills do not march in a straight line. Body, task, and world cooperate — a baby walks when the room, the muscles, and the motivation line up, not on a due date.

Lawrence Kohlberg · 1927–1987

Moral development

Moral reasoning grows from 'don't get in trouble' toward 'what kind of person / world do we want' — and children need dilemmas, not only rules.

B.F. Skinner · 1904–1990

Behaviorism (used with care)

Consequences shape behavior. Useful for building habits — dangerous if it becomes the whole theory of a child.

AAP & play science · ongoing

Play as development

Play builds prefrontal circuitry, social skill, and courage. It is not the opposite of serious. It is how children get serious work done.

Locke & Rousseau · 17th–18th c.

Blank slate vs. innate goodness

Locke: the mind is written by experience. Rousseau: the child is already good, and we should not rush them into our corruptions. You still teach inside this argument.