The development of a child does not occur in clear-cut stages. The four classic spheres (motor, cognitive, language, socio-emotional) interact continuously, and it is precisely this interaction that makes support complex. We regularly observe that some parents worry about an isolated delay while the overall development follows a coherent trajectory. Better understanding these mechanisms requires moving beyond simplified age grids to enter into the developmental logic itself.
Sensorimotor development: the foundation that age grids do not show
Sensorimotor maturation conditions all subsequent acquisitions. A child who has not sufficiently explored postural supports on the ground will have more difficulty stabilizing their visual attention, which then impacts language and preschool learning. The coordination of posture, gaze, and manipulation forms a functional continuum, not a succession of independent stages.
Rhythmic and vibrational stimuli (music, structured sounds) play a documented role in brain synchronization, emotional regulation, and motor coordination. Appropriate sensorimotor interventions can support posture, attention, and social integration in young children with developmental vulnerabilities.
We recommend not evaluating a child’s motor skills on a single axis (walking acquired at a certain age) but observing the quality of their postural adjustments, their ability to modulate their strength, and the fluidity of their transitions between positions. Additional resources on parental support at each age are available at https://www.nosenfantsdabord.com/, which structures its content around concrete benchmarks for families.
Attachment and emotional regulation: two distinct mechanisms often confused
Secure attachment does not guarantee autonomous emotional regulation. A child securely attached to their parent has a safety base, but the ability to manage their emotions without systematic recourse to the adult is built gradually, well beyond early childhood. Confusing these two processes leads to unrealistic expectations.
Emotional regulation depends on the maturation of the prefrontal cortex, which continues into adulthood. Before the age of six, a child simply does not have the necessary neural architecture to inhibit a strong emotional reaction. This is neither a whim nor a failure of education.
What this changes in daily support
Rather than aiming for the disappearance of emotional crises, we guide parents towards a more realistic goal: increasing the recovery time after a crisis is a better indicator of progress than the absence of a crisis itself. A four-year-old who regains their calm within minutes after intense frustration demonstrates quite appropriate functioning.
Co-regulation (the parent lends their own regulatory system to the child) remains the main lever. It implies that the adult is themselves in a sufficiently stable emotional state, which brings us to the often-neglected question of parental mental health.
Child language: subtle signals before the first words
The acquisition of language does not begin with the first word. It starts with the proto-conversations of the infant, these exchanges of glances, vocalizations, and non-verbal turns of speech that establish the communicational structure long before the appearance of vocabulary.
- Proto-declarative pointing (showing an object to share interest, not just to request) generally appears around the end of the first year and is a reliable marker of communicative engagement.
- Prosody, that is, the melody of speech, is processed by the infant before the phonemes themselves. A child perceives intention before understanding words.
- The language bath is not just about speaking a lot. The quality of interactions (contingent responses, reformulations, pauses allowing for the child’s response) weighs more than the raw verbal volume.
We observe that parents often underestimate the importance of silence in exchange. Allowing a latency time after a question posed to a young child enables them to mobilize their linguistic resources. Answering on their behalf out of impatience short-circuits precisely the process we seek to stimulate.
Recent institutional benchmarks for supporting children aged 3 to 6
The guide “The Keys to Childhood 3-6 Years,” launched jointly by the Ministry of National Education and the High Commissioner for Children, structures parental support around three documented priorities:
- Affective security, validation, emotional management, play, movement, and sleep.
- Entry into schooling, with a reminder of compulsory education from the age of three, preparation for the first school year, and the importance of stories and games around numbers.
- The preservation of health, including an explicit reminder about non-violent education and an exceptional use of screens before the age of six.
This guide follows “The Keys to Childhood 0-3 Years” published in October 2025. Distribution is organized via rectorates and municipalities to families entering kindergarten. These documents refocus support on verified institutional benchmarks, which serves as a useful counterbalance to the profusion of unverified content on social media.
Screens and development: a question of brain timing
The recommendation for exceptional use of screens before the age of six is not based on a moralistic stance. It stems from the fact that a child’s brain, at this age, needs three-dimensional and multimodal interactions to build its neural networks. A two-dimensional and non-contingent screen (it does not react appropriately to the child’s signals) does not fulfill this function.
Supporting child development benefits from relying on these recent benchmarks rather than on outdated theoretical models used out of context. Each child follows their own trajectory, but the underlying mechanisms are universal. Knowing these mechanisms allows parents and professionals to distinguish a normal variation from a signal that justifies specialized evaluation.
