Why motor skills are much more than just muscles
When a baby reaches for an object, misses, tries again, and finally grasps it, this seemingly ordinary moment is actually a neurologically complex sequence. Each gesture mobilizes several areas of the brain simultaneously: the motor cortex, the cerebellum, the parietal lobes, and a dense network of sensory connections. Motor skills, whether fine or gross, are not just a physical ability. They are a major lever for a child's cognitive, language, and emotional development.
Developmental neurosciences are clear on this point: movement is thought. The work of researcher Adele Diamond, in particular, has shown that executive functions—attention, working memory, inhibition—are largely built through bodily experience in the early years. A child who crawls, climbs, grabs, or transfers objects is not just playing while waiting to learn. They learn precisely because they play and move.
Gross Motor Skills: The Body as the First Tool for Understanding the World
Gross motor skills refer to all movements involving large muscle groups: holding the head up, rolling over, sitting, crawling, standing, walking, running, jumping. These acquisitions follow a relatively universal sequence, but each child progresses at their own pace—and that is perfectly normal.
0 to 6 months: Postural Foundations
In the first few months, the challenge is postural control. The baby learns to hold their head up, to support themselves on their forearms during tummy time, and to coordinate their arms and legs. These "tummy time" moments, often perceived as anodyne, are actually essential: they strengthen back and neck muscles, stimulate proprioception—the body's awareness of itself in space—and prepare for future postural transitions.
The floor is the best playground at this age. A clean, safe, and visually stimulating floor space is sufficient. This is exactly the philosophy behind floor play mats, which offer both comfort, adapted sensory stimulation, and freedom of movement. The Treelys play mat precisely meets this need: designed to support these first moments of floor exploration, it offers a soft and secure surface that invites the baby to move freely, without constraint.
6 to 18 months: Gradual Verticalization
This is the period of the great vertical conquest. The baby transitions from sitting to standing, often through crawling, commando crawling (moving on the belly), or other perfectly valid variations. Each intermediate step counts: commando crawling, for example, promotes the integration of both brain hemispheres through cross-coordination of limbs.
It is useful to know that skipping steps—for example, never crawling—is not systematically problematic, but it deserves to be observed. If your child does not crawl but moves effectively in other ways and reaches other milestones, there is generally no cause for concern. However, if several milestones seem delayed, consulting a healthcare professional is the right approach.
18 months to 3 years: Refining and Complexifying
Assured walking, then running, then jumping, stairs, balancing on one foot for a few seconds: gross motor skills refine considerably between 18 months and 3 years. The child actively seeks to test their physical limits—climbing, jumping off the couch, running on uneven terrain. These behaviors, sometimes a source of concern for parents, are normal and necessary learning behaviors. They develop body confidence and the vestibular system.
Fine Motor Skills: Precision at the Service of Thought
Fine motor skills involve the precise movements of small muscles, primarily in the hands and fingers, but also eye muscles. They develop continuously from birth to adulthood, with crucial acquisitions in the first three years.
Palmar Grasp then Pincer Grasp
At birth, the baby holds objects with their whole hand—this is the palmar grasp. Around 8 to 10 months, the pincer grasp appears: the child is now able to grasp small objects with precision. This acquisition is a major neurological milestone, demonstrating the maturation of the primary motor cortex and corticospinal connections.
To support this development, the environment plays a key role. Offering objects of various sizes, textures, and shapes—in a safe setting—stimulates tactile discrimination and refines motor control. This is a central principle of Montessori pedagogy: the prepared environment provides the child with materials adapted to their stage of development, neither too simple nor too complex.
Transferring, Nesting, Scribbling
Between 12 and 36 months, fine motor activities become richer: transferring grains or liquids from one container to another, nesting shapes, building with blocks, then scribbling and first intentional drawings. These activities are not mere pastimes: they strengthen hand-eye coordination, concentration, and self-control.
Scribbling, in particular, deserves special attention. Around 18 months, the child holds a crayon with their fist. Around 2 years, the grip becomes more precise. Around 3 years, some children adopt a tripod grip similar to that of an adult. This progression is linked to the myelination of nerve fibers—a process that cannot be accelerated, but can be supported by regular opportunities for practice.What You Can Do Concretely
The parent's role is not to constantly stimulate, but to prepare an environment that encourages exploration. A few simple principles derived from neuroscience and Montessori pedagogy:
Allow time on the floor. Limit time in bouncers, swings, and other equipment that keeps the child in a passive position. The floor is the best space for motor development in the first year.
Offer little, but well. Too many toys scatter attention. Two or three age-appropriate objects, in regular rotation, are more effective than a bin full of colorful plastic.
Don't intervene too quickly. When a child is struggling to grab something or get up, the immediate reflex to help is natural. But allowing a few seconds—sometimes a few minutes—allows them to develop perseverance and experience the success. This is what research calls optimal scaffolding: supporting without doing it for them.
Go outside regularly. Natural terrains—grass, sand, gravel—are much more stimulating for motor and sensory development than flat, uniform surfaces. Nature offers a variety of textures and challenges that artificial environments cannot replicate. We elaborate on this in our article on free play and gadget-free creativity.
Motor Skills and Global Development: Everything is Connected
It would be reductive to think of motor skills in isolation. They are intimately connected to language development—research shows that children with good fine motor skills tend to acquire language more easily, probably because the same neural networks are involved. They are also linked to emotional regulation: a child who has good control over their body is generally calmer, as the feeling of physical competence reduces frustration.
This is why we cannot talk about motor skills without mentioning the first 1000 days, this period where the great neural architectures that will condition future learning are built. Investing in a rich and adapted motor environment during these early years is laying solid foundations—not to create a high-performing child, but to allow them to develop at their own pace, with confidence.
What Maria Montessori Says, and What Neuroscience Confirms
Maria Montessori had observed, long before neuroimaging tools, that the hand is the instrument of intelligence. 'The hand is the organ of the mind,' she wrote. A century later, neuroscience proves her right: the cortical representation of the hand is disproportionately large in the human brain. What the child does with their hands, they think with their brain.
It is for this reason that Montessori gave a central place to practical life activities—pouring, folding, buttoning—from 18 months. These activities are not pedagogical gadgets: they respond to a real neurological need, that of building connections between intention and action, between gesture and result.
The good news is that you don't need sophisticated materials to meet this need. A pitcher of water, a spoon, beans to transfer, a sponge to wring out: everyday objects are the best developmental tools. And a carefully prepared environment—safe, accessible, inviting—is enough to unleash your child's natural potential.
