Expert Talk: All About Sensitive Periods for Small Objects and Order by Educator Sobhana Menon (Part 2)

Two Montessori sensitive periods explain a lot of everyday toddler behaviour: a pull towards tiny objects, and a need for things to happen in a familiar order. This blog covers what each one looks like, why it matters, and how to support it at home. It is why a toddler spots a shell in the sand that an adult walked straight past, and why a wet umbrella on the dining table can end in a full meltdown.

Sobhana Menon, Principal of Eklavya School, has spent 27 years working with toddlers and teenagers. She explained both periods to Akriti Gupta, founder of Loopie, on The Parent Code episode “Toddler Tantrums, Routine & Behaviour”. This read is for parents of toddlers who want to understand the why behind the behaviour.

What to keep in mind

• Ages are approximate. Sobhana shares ranges, and every child moves at their own pace.

• Toddler sensitive periods are a framework, not a checklist. The Association Montessori Internationale’s glossary of Montessori terms describes them as phases when young children are drawn to specific parts of their environment and concentrate deeply, often repeating an activity without any reward.

• Small objects and mouths go together. The American Academy of Pediatrics’ choking prevention guide explains that babies and toddlers explore by mouth, and advises keeping coins, marbles, pen caps, button batteries, and toys with small or detachable parts out of reach. Supervise closely during any small-object play.

• New to the idea? Part 1 of this blog series explains what a sensitive period is and covers the sensitive period of movement.

• A paediatrician is the right person to ask about any specific concern related to your baby.

Why are toddlers fascinated by small objects?

Starting around one to one and a half years and lasting until about three to three and a half, many toddlers go through the sensitive period for small objects. Their attention gets drawn to tiny things like shells, ants, crumbs, and bindis. This toddler fascination with small objects is a phase of curiosity that builds focus and finger control.

Sobhana describes it in everyday terms: “Children’s focus and attention are on tiny little things. Your bindi, for instance, is something a little one will constantly want to take off and examine.”

It often shows up outdoors. “When you take your child to a sandpit, you might find them searching for tiny shells. You could have been sitting there for half an hour without noticing any of them, but those little objects immediately catch your child’s attention.”

Akriti has seen this with her daughter. During a walk in the park, her daughter found something beautiful that Akriti had completely missed. “It’s wonderful to see that she has a very different perspective from ours,” she says.

So the next time a toddler stops to study a pebble, it is not a distraction. It is focus at work.

What does the sensitive period for small objects build?

Sobhana points to four benefits that last well beyond toddlerhood.

Fine motor skills

“There’s a constant urge to pick things up using their pincer grip,” she says, and pincer grip development gets stronger with every tiny shell or crumb.

Attention to detail

Allowed to explore at their own pace, children can develop “a great deal of meticulousness as they grow.”

Sensory awareness

Toddlers “learn to see, feel, touch and hear things more closely.” A buzzing bee struggling to turn over can keep a child watching and waiting.

Ownership and care

“Small objects give children a strong sense of satisfaction, so they want to keep them close and take care of them.”

That last point shows up in a story from Sobhana’s school. At circle time, a child may pass a tiny shell from one hand to the other so they can keep holding it while joining hands with the next child. “It’s beautiful to watch because they simply don’t want to let it go.”

Akriti also observed the attachment: “It’s mine, and I want to keep it.” It is why a toddler’s collection of small things, from shells to stones, matters so much to them.

Montessori activities for small objects

Sobhana’s suggestions are simple, and they suit any Montessori toddler at home. Parents can “provide materials that allow them to sort, bead, and do lacing activities.”

On food, the AAP guide above notes that small, round, firm foods can be choking hazards. It suggests cutting grapes into small pieces and keeping whole nuts, popcorn and hard candy away until about age four. The Royal Children’s Hospital Melbourne adds a handy rule for toys: nothing smaller than a D-sized battery for toddlers.

For more ideas, Loopie’s guide to the benefits of Montessori learning, with toys and tips for parents is a good next read. None of it needs special equipment. Time, safe materials, and a patient adult are enough.

What happens when you interrupt a toddler’s exploration?

Interrupting can cut a toddler’s exploration short before it feels finished. Some children cry and ask for the object back. Others look upset and move on to something else. Neither reaction is misbehaviour. It is a child’s way of responding to an interrupted process.

Sobhana says this comes from a good place. “The sad part is that we don’t always give children enough opportunities to explore. When we see a small child picking something up, we immediately take it away.” Akriti admits she has done it too.

The catch, as Sobhana puts it: “you interrupt their entire process.” The fix is not to hand over everything. “If parents understood what’s happening, they could create opportunities for children to explore safely.”

When an object does have to be handed over, she uses a promise: “Give it to me. I’ll keep it safely, and when circle time is over, I’ll return it to you.” The promise matters. The child “will come back and say, ‘Ma’am, give it back to me,’” and “you need to return it because they remember every detail.”

A few extra minutes of safe exploration can mean a lot to a toddler.

What is the sensitive period for order?

The sensitive period for order is a phase when children strongly prefer familiar routines, sequences, and places for things. Sobhana says it begins as early as one or two months of age. Predictability helps children feel secure and confident, which is why toddlers need routine so much.

Sobhana also explains how it starts. “Once your child develops a rhythm around waking up and sleeping, they start recognising their daily routine.” Soon they know when they get hungry, when they are fed, when they sleep and when they wake.

Think of a missed nap before a doctor’s appointment. The child keeps crying, and parents wonder why. “It’s not necessarily because they’ve been physically hurt. It’s because their usual rhythm has been disrupted.”

In short, “children have a strong sense of order. They like things to happen in a particular sequence and generally don’t enjoy unexpected changes.” Akriti’s reply says it all: “No surprises!”

She saw this early with her daughter. Daycare ran five days a week, but on Saturdays her daughter would pick up her shoe and come over, as if to say, “Okay, let’s go to daycare!” On this, Sobhana also shared her thoughts: “That’s the sense of order at work.”

Why do toddlers get upset when routines change?

A familiar sequence is how a toddler’s day makes sense. When it breaks, the child may cry or refuse, even though nothing hurt. Sobhana says toddler tantrums over a change in routine often reflect a disrupted sense of order, not necessarily defiance or dislike of a person.

Sobhana shares a story from her own home. A guest arrived drenched in the rain and, in a hurry, placed her wet umbrella on the dining table. The family’s toddler, around one and a half to two years old, came to see who had arrived and began a huge tantrum before even looking at the guest. “We assumed the child didn’t like the new person,” she recalls.

Then someone put the umbrella back in its usual place. “Suddenly, everything became calm.”

Her reading, years later: “The child wasn’t necessarily reacting to the guest. It may have been the misplaced umbrella that was upsetting them.” A plate on the same table might not have bothered the child at all. “But the umbrella was something that didn’t belong there.” Akriti added: “The child was actually helping you maintain order!”

Sobhana says adults may see this as “unnecessarily rigid or compulsive,” but “that’s how their sense of order can work at this age.”

Understanding it pays off. “When their surroundings and routines are predictable, children feel more confident.” When the period is overlooked, she says, children “can experience a lot of frustration and anger. They may also develop low self-esteem or struggle to verbalise what they’re feeling.” The good news is that small adjustments go a long way.

How can you help a toddler with changes in routine?

Preparing toddlers for change starts the day before. Mention the change, remind them a few times, describe what will happen, and give a reason they can understand. Sobhana says a two-year-old can learn to cooperate with changes when prepared in advance.

• Tell your toddler the day before.
  
  
• Remind them a few times.
  
  
• Explain why the plan is changing.
  
  
• Point to something they can look forward to.

Picture a toddler who has followed the same pattern for six months: daycare ends, Mama arrives, they go home. Then one Wednesday, the plan is a visit to an aunt’s house. Without warning, Sobhana says, a toddler may protest, or even say they do not like their aunt. “They may simply be trying to tell you that they want to go home because that’s what they’re used to.”

With a day’s notice, a reminder, and a reason such as Ryan’s birthday, the same plan lands very differently. “You’re giving your child something to understand and look forward to.” And, in her words, “there needs to be a reason they can understand. Otherwise, they may struggle to accept the change.”

HeadStart.gov’s guidance on supporting transitions for infants and toddlers says much the same. It recommends giving as much warning as possible about a change of plans and describing the new experience, and it suggests focusing on what the child will enjoy next.

Patience helps too. “Adults have been conditioned to adjust to changes, but children need more experiences before they develop that ability.”

Can you reason with a toddler?

Yes, more than most parents expect. Sobhana says toddlers can understand explanations, and the HeadStart.gov guidance above notes that toddlers often understand far more than they can say. Akriti saw this at two in the morning, when a simple explanation settled her daughter after a meltdown.

Her daughter had woken up upset. The cause turned out to be simple: her usual pillow was in another room. Her parents explained why; she understood, and she went back to sleep. “We’re genuinely surprised by how reasonable our daughter can be,” Akriti says. Asked if toddlers really can follow logic, Sobhana’s answer was short: “Yes, they can.”

Short, calm explanations are worth trying, even with a very young child.

FAQs: Parents' Most Asked Questions on Sensory Periods

Do Montessori sensitive periods overlap?

Yes. As Sobhana puts it, “one doesn’t necessarily end before another begins. They overlap and happen simultaneously.” A toddler can be drawn to small objects and to a familiar routine at the same time.

Why does my toddler wake at the same time on weekends?

A toddler’s body clock keeps its usual rhythm. Sobhana says a child may wake at the same time on weekends, or even 10 to 15 minutes earlier. “It’s just that you’re sleeping longer!”

Will my toddler always struggle with change?

No. Sobhana says that as the sensitive period for order progresses, children build their own sense of order and become more ready to accept change. Changes still should not come too often, because they need some predictability.

Exploring the good side of wonder & curiosity

Toddlers who hunt for tiny shells and protest a moved umbrella are showing the same thing: a mind busy making sense of the world. The sensitive period for small objects builds focus, finger control and care. The sensitive period for order builds security and confidence. Parents can support both with safe exploration, steady routines and a little advance notice. As Sobhana says, “A little explanation and preparation can help them adjust.”

There's much more to sensitive periods & the influence they can have on your child's development in their early childhood. We'll learn more about this in the upcoming parts of the sensitive period blog series.