- Toodler Early Learning
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Somewhere in the second year, the milestone comparisons begin in earnest.
Not necessarily from you as you might be the parent who has decided not to compare, who knows intellectually that every child develops at their own pace, who has read enough to understand that the range of normal is wide. But the comments arrive anyway. From a family member at Sunday lunch who mentions that their grandchild was walking at ten months. From a friend whose toddler the same age as yours is already putting two words together. From an app that generates a weekly notification telling you what your child should be doing this week, which you read at 7am and immediately regret.
And underneath the comparisons, a quieter question: is your baby okay? Is your baby on track? Is there something I should be noticing that I am missing?
This article is the honest answer to that question. Not the version that lists milestones and implies your toddler should be hitting each one at a specific age, but the version that explains what typical development actually looks like across the second year, including how wide the normal range genuinely is, which signs are worth bringing to your paediatrician, and which comparisons are genuinely not useful.
The most important thing to say before anything else: typical development is not a specific point. It is a range. A wide one. Most of what parents worry about in the second year is well within it.
Why the second year is so difficult to read
The developmental gains of the first year were enormous but relatively predictable in their sequence like sitting before standing, standing before walking, babbling before words. The second year is different. Development in the 12-24 month window is faster, more variable, and less linear than anything that came before it, and different children show dramatically different profiles even when all of them are developing completely typically.
One 15-month-old is walking confidently and has almost no words. Another has twelve words and is still furniture-cruising. Both are typically developing. A toddler who walks at 10 months and a toddler who walks at 17 months are both within the typical range, and nothing about when a child walks predicts anything meaningful about their later development. The child who talks early and walks late is not behind. The child who runs at 13 months and says nothing until 18 months is not behind either.
The reason this matters practically is that milestone comparisons between individual children, even children the same age, tell you almost nothing useful. What matters is whether your toddler is progressing: whether baby is doing more this month than last month, whether new skills are continuing to emerge, whether baby is engaged and responsive and interested in the world around them. Progress within their own trajectory is the meaningful measure. Where baby sits relative to another child at a specific age is not.
What typical development looks like
Movement and physical development
Walking is the milestone most parents focus on in the second year, and the one that generates the most anxiety when it arrives later than expected. The typical range for independent walking is 9-18 months. Read that again: 9-18 months. A toddler who takes their first independent steps at 16 or 17 months is within the completely typical range. Your toddler is not behind and does not need intervention. Baby is simply at the later end of normal, which is still normal.
What to look for rather than a specific walking age: is your child weight-bearing on their legs when supported? Is he/she pulling to stand? Is he/she cruising along furniture? A child who is doing these things, who is on the developmental pathway toward walking, even if they have not yet taken independent steps, is progressing typically.
Once walking is established, the second year brings a rapid expansion of gross motor skills: running, which typically arrives within a few months of walking; climbing, which arrives earlier than most parents would prefer; kicking a ball; beginning to jump, though landing with two feet simultaneously typically comes closer to two years; walking up and down stairs with support.
Fine motor development in the second year is equally rapid: the pincer grasp that emerged at the end of the first year becomes more refined, enabling increasingly precise manipulation of small objects. By 18 months most toddlers can stack two to four blocks, hold a spoon and attempt to use it, scribble with a crayon, and turn the pages of a board book. By 24 months most can stack six or more blocks, begin to use utensils with some success, and turn pages of a regular book one at a time.
Language and communication
This is the area that generates the most parental anxiety in the second year and the area where the range of normal is most frequently misunderstood, often because the guidelines themselves are presented in ways that make them sound more precise than they are.
At 12 months, most children say one to three words with clear meaning and intent (mama, dada, something that functions as a word even if it does not sound like one yet) They understand significantly more than they can say: they follow simple instructions, respond to their name consistently, and can point to familiar objects or people when asked.
By 15 months, the typical range is three to ten words. Some children at 15 months have more than this. Some have fewer and are still developing within the typical range. The number matters less than whether language is progressing, whether new words are appearing, whether baby is attempting to communicate intentionally even when the words are not yet clear.
By 18 months, the typical range expands considerably: most guidelines cite between 6 and 20 words for monolingual children, with the caveat that children acquiring two or more languages simultaneously (which most Mauritius toddlers are, moving between Creole, French, and English) may have a slightly smaller vocabulary in each individual language while their overall communicative vocabulary across all languages is entirely typical. This is one of the most important things for Mauritius parents to understand, and one that is rarely explained in the generic milestone content they find online.
At 24 months, the most significant milestone is the emergence of two-word combinations: putting two words together intentionally like “more milk,” “mama go,” “no bed” which indicates a qualitative developmental step rather than simply more words. Most children reach this milestone between 18 and 24 months.
What matters at every point: comprehension, which develops ahead of expressive language; intentional communication, through words, gestures, pointing, and eye contact; and progress, whether new words or new communicative behaviours are consistently emerging. A child who is not progressing across several months, or who is losing words she previously had, warrants prompt paediatric attention.
Related Read: Language development in toddlers — what typical looks like in a multilingual Mauritius household
Social and emotional development
The social-emotional development of the second year is some of the most visible and most endearing and also some of the most exhausting.
At 12 months, most toddlers show clear and specific attachment to familiar caregivers, stranger anxiety that may have been present since 8 or 9 months, and the beginnings of joint attention, i.e. the ability to look at something and then look at you and back again, sharing the experience of an object or event. Joint attention is one of the most developmentally significant milestones of the first two years and is worth knowing about: a toddler who points to show you something interesting, who looks to you to share a reaction, who follows your pointing gesture to look at what you are directing their attention toward, is demonstrating the social referencing that underpins all future social and communicative development.
By 15 to 18 months, separation anxiety often reaches a new peak as their understanding of relationships deepens and their feelings about your departure become more complex. This can be expressed as clingy daytime behaviour, increased night waking, and distress at drop-offs that was not present a few months earlier. It is developmental, not regression, and it eases as they understanding of your return and the permanence of your relationship becomes more secure.
By 24 months, most toddlers show empathy in its earliest forms, like attempting to comfort a distressed person, noticing when someone is hurt, beginning to understand that other people have feelings. They engage in parallel play, playing alongside rather than with other children, which is the age-appropriate precursor to the cooperative play that comes later. Most are beginning simple make-believe: talking to a toy as if it can hear, pretending to feed a doll, using an object as something it is not.
Cognitive development
By 12 months most toddlers understand basic cause and effect like pressing a button produces a sound, dropping an object produces a reaction. Object permanence is established: baby knows you exist when you leave the room, which is why they call for you. They can follow simple one-step instructions when accompanied by a gesture.
By 18 months baby understands simple two-step instructions without gesture, can find objects she has seen you hide, can sort objects by simple categories (all the red ones here, all the round ones there), and is beginning to understand the concept of “mine” which they will apply enthusiastically and broadly.
By 24 months baby can match shapes and colours, complete simple puzzles with 3-4 pieces, follow two-step instructions reliably, and begin to understand concepts like “in,” “on,” and “under.” Their attention span, while still short, has extended enough that they can engage with a simple book, a stacking toy, or a puzzle for several minutes at a time.
What actually warrants a call to your paediatrician
This section matters as much as everything above, because the goal is not to create anxiety about milestones but to give you the specific information that helps you distinguish ordinary variation from something worth investigating.
Contact your paediatrician if your toddler is not walking by 18 months. Not 16 months, not 17months but 18 months. Before that, watch for the pathway: weight bearing, pulling to stand, cruising. If the pathway is progressing, independent walking will typically follow. If there is no weight bearing or pulling to stand by 15 months, a conversation with your paediatrician at that point is appropriate.
Contact your paediatrician if your toddler has no words at all by 16 months. Not a few words but zero intentional communicative words, combined with limited pointing and limited following of instructions. This warrants a hearing assessment and developmental review rather than a wait-and-see approach.
Contact your paediatrician if your toddler loses words or skills they previously had at any point. Language regression, the loss of words that were previously present, is the single most important warning sign in toddler development and should be reviewed promptly rather than watched.
Contact your paediatrician if baby is not pointing to share interest by 14 months, if baby does not follow simple instructions by 15 months, if baby is not engaging in pretend play by 24 months, or if you have a persistent and specific instinct that something about their development is not progressing as it should.
Your instinct about your own child is a valid clinical signal. You see your baby every day. You know what they were doing last month. If something feels different in a way that concerns you, not in comparison to another child, but in comparison to oneself, bring it to your paediatrician.
Milestones at a glance
12 months
Walking with support or independently, though up to 18 months is normal. One to three intentional words. Follows simple instructions with gesture. Points to request and to share. Strong attachment to familiar caregivers. Waves goodbye.
15 months
Most toddlers walking independently. Three to ten words typical, though variation is wide, particularly in multilingual households. Beginning to use a spoon. Stacks two blocks. Strong separation anxiety. Brings objects to show you.
18 months
Running, beginning to climb. Six to twenty words in monolingual children but fewer in each language for multilingual children is normal. Beginning to follow two-step instructions. Scribbles with crayon. Stacks three to four blocks. Separation anxiety at or near peak. Beginning simple pretend play.
24 months
Running confidently, beginning to jump. Two-word combinations emerging — this is the key milestone at this age. Can follow two-step instructions reliably. Stacks six or more blocks. Simple puzzles. Beginning parallel play with other children. Emerging empathy.
The comparison that is actually worth making
The comparison that tells you the most about your toddler’s development is not the one between your toddler and another child their age. It is the comparison between them and themselves, last month.
Is baby doing things they were not doing four weeks ago? Are new words appearing, new skills emerging, new ways of engaging with you and the world around her? Is the trajectory one of progress, even if the pace is entirely her own?
That is the question worth asking. And for the vast majority of toddlers, the honest answer, even on the days when the comparison with another child’s highlight reel makes it harder to see, is yes.
FAQ GROSSESSE
My toddler is 16 months and not walking yet. Should I be worried?
Not yet. The typical range for independent walking is 9-18 months, so a 16-month-old who is not yet walking independently is within the normal range. The more useful question is whether baby is on the developmental pathway, i.e. bearing weight on their legs when supported, pulling to stand, cruising along furniture. If baby is doing these things, independent walking will typically follow within weeks to months. If baby is not yet weight-bearing at all by 15 months, mention it to your paediatrician at your next visit.
How many words should a toddler have at 18 months?
Guidelines typically cite 6 to 20 words for monolingual 18-month-olds, but this is one of the most context-dependent milestones in the second year. Children acquiring two or more languages simultaneously may have fewer words in each individual language while their total communicative vocabulary across all languages is completely typical. The more important indicators at eighteen months are whether new words are appearing consistently, whether baby understands what you say, and whether they are communicating intentionally through words, pointing, and gesture.
What is joint attention and why does it matter?
Joint attention is the ability to share focus with another person on an object or event, looking at something, then looking at you, then back at the thing, as if to say “are you seeing this?” It develops in the first year and is typically well-established by twelve to fourteen months. It is one of the most developmentally significant milestones of early childhood because it underpins all later social and communicative development. If your toddler is not pointing to share interest or following your pointing gesture by fourteen months, raise it with your paediatrician.
My toddler was saying words and then stopped. Is this normal?
Language regression — the loss of words that were previously present — is the one milestone sign in the second year that warrants prompt attention rather than a wait-and-see approach. Contact your paediatrician promptly if this is happening. It is always worth investigating, even if a straightforward explanation is eventually found.
Should I be doing specific activities to help my toddler’s development?
The most developmentally supportive environment for a toddler is one that is responsive, language-rich, and full of opportunity for play and exploration, not one structured around specific developmental activities. Talking to your toddler, narrating your daily activities, reading simple books, giving them safe objects to explore and manipulate, and responding to their communicative attempts all support development more reliably than formal activities designed to teach specific skills. Play is how toddlers learn.
References: American Academy of Pediatrics — Developmental milestones. healthychildren.org. World Health Organisation — Child growth standards and developmental milestones. who.int. NHS — Your child’s development: one to two years. nhs.uk. Centers for Disease Control and Prevention — Developmental milestones. cdc.gov. Communicare — Multilingual children and language milestones.
Disclaimer: This article is for general informational and educational purposes only. Developmental milestones represent ranges and averages rather than fixed expectations. If you have specific concerns about your toddler’s development, contact your paediatrician for a personalised assessment. This article does not replace professional developmental or medical evaluation.