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Development

From newborn to early childhood, these articles help you understand and celebrate physical and social developmental milestones to help you navigate parenting.

Newborn wearing a hat in the hospital
Development

Updated 03/02/26

Do newborns have to wear hats?

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by Christie CraftParenting content expert
Baby on the floor working on rolling over
Development

Updated 02/05/26

When do babies roll over? A timeline and development guide

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by Emily Rodheim, MS, OTR/LOccupational Therapist
Baby doing tummy time
Development

Updated 01/02/26

Tummy time chart and positions by age: How much, when, and how to do it

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by Emily Rodheim, MS, OTR/LOccupational Therapist
Baby doing floor time play
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Updated 01/02/26

Floor time for babies: Why it matters and when to start

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by Emily Rodheim, MS, OTR/LOccupational Therapist
Baby doing tummy time with dad
Development

Updated 01/02/26

Tummy time for babies: When, how, and why it matters

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by Emily Rodheim, MS, OTR/LOccupational Therapist
30 month milestones illustrated image
Development

Updated 12/29/25

30 month old toddler milestones: Development, growth, speech, language, and more

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by Christie CraftParenting content expert
23 month toddler milestones illustrated image
Development

Updated 12/29/25

23 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
22 month milestones illustrated image
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Updated 12/29/25

22 month old toddler milestones: Development, growth, speech, language, and more

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by Lauren LevyParenting content expert
13 month milestones illustrated image
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Updated 12/29/25

13 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
21 month old toddler milestones illustrated image.
Development

Updated 12/29/25

21 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
20 month toddler milestones illustration
Development

Updated 12/29/25

20 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
19 month milestones illustrated image
Development

Updated 12/29/25

19 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
17 month old toddler milestones illustrated image
Development

Updated 12/29/25

17 month old toddler milestones: Development, growth, speech, language

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by Lauren LevyParenting content expert
5 year old development illustrated image
Development

Updated 12/29/25

5 year old child milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
A baby standing
Development

Updated 12/29/25

When do babies stand for the first time?

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by Emily Rodheim, MS, OTR/LOccupational Therapist
A baby holding a bottle.
Development

Updated 12/29/25

When do babies hold their own bottle for the first time?

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by Emily Rodheim, MS, OTR/LOccupational Therapist
A baby laughing.
Development

Updated 12/29/25

When do babies laugh for the first time?

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by Hannah Rodheim, MS CCC-SLPSpeech-language pathology consultant
A baby cooing.
Development

Updated 12/29/25

When do babies coo for the first time?

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by Hannah Rodheim, MS CCC-SLPSpeech-language pathology consultant
A baby clapping.
Development

Updated 12/29/25

When do babies clap, wave, and point for the first time?

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by Hannah Rodheim, MS CCC-SLPSpeech-language pathology consultant
11 month milestones illustrated image
Development

Updated 12/29/25

11 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
1 month baby milestones illustrated image
Development

Updated 12/29/25

1 month old baby milestones: Development, growth, and more

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by Deena ShinnParenting content expert
A family potty training a toddler.
Development

Updated 03/10/26

How does potty training affect toddler sleep and cause regression?

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by Deena ShinnParenting content expert
16 month toddler milestones illustrated image
Development

Updated 01/26/26

16 month old toddler milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
14 month milestones illustrated image
Development

Updated 12/29/25

14 month old toddler milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
A little girl meeting her new baby sibling, while her mom holds the baby.
Development

Updated 12/30/25

How to prepare older siblings for the arrival of a new baby

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by Deena ShinnParenting content expert
4 year old milestones illustrated image
Development

Updated 12/29/25

4 year old child milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
8 month milestones illustrated image
Development

Updated 12/29/25

8 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
2 month old baby milestones illustrated image
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Updated 12/29/25

2 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
12 month old baby milestones
Development

Updated 12/29/25

1 year old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
9 month milestones illustrated image
Development

Updated 12/29/25

9 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
6 month old baby milestones illustrated image
Development

Updated 12/29/25

6 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
4 month old baby milestones illustrated image
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Updated 12/29/25

4 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
5 month old baby milestones illustrated image
Development

Updated 01/26/26

5 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
7 month milestones illustrated image
Development

Updated 12/29/25

7 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
3 year old milestones illustrated image
Development

Updated 12/29/25

3 year old milestones: Development, growth, speech, language, and more

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by Deena ShinnParenting content expert
2 year old toddler milestones illustrated image
Development

Updated 12/29/25

2 year old milestones: Development, growth, speech, language, and more

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by Deena ShinnParenting content expert
3 month milestones image
Development

Updated 01/26/26

3 month old baby milestones: Development, growth, speech, language

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by Deena ShinnParenting content expert
18 month old toddler milestones illustrated image
Development

Updated 12/29/25

18 month old toddler milestones: Development, growth, speech, language

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by Amber LoReDirector of Pediatric Expertise
15 month milestones illustrated image
Development

Updated 12/29/25

15 month old toddler milestones: Development, growth, speech, language

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by Amber LoReDirector of Pediatric Expertise
A group of little children with musical instruments.
Development

Updated 01/02/26

The benefits and importance of music education for children

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by Liz Harden, MPHPediatric sleep consultant
Parents and a child being happy.
Development

Updated 01/02/26

Teaching gratitude: Fun thankfulness activity for children

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by Liz Harden, MPHPediatric sleep consultant
A mother and child reading a book.
Development

Updated 01/02/26

Embracing the world: Introducing cultural diversity to your kids

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by Camila MarteloPediatric Sleep Consultant
Children painting leaves.
Development

Updated 01/02/26

Art activities for kids: Using creativity to express emotions

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by Liz Harden, MPHPediatric sleep consultant
Two children outside looking at a creek.
Development

Updated 01/02/26

The joy of nature: Outdoor activities for children

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by Molly Mahler, MSOTPediatric Sleep Consultant & Occupational Therapist
10 month milestones illustrated image
Development

Updated 12/29/25

10 month old baby milestones: Development, growth, speech, language

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by Beth Christensen, DPTPediatric Sleep Consultant & Physical Therapist
A mother showing a toddler clock to her child.
Development

Updated 08/14/25

A comprehensive guide on how to use toddler clocks

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by Liz Harden, MPHPediatric sleep consultant
A mother role modeling meditation to her children.
Development

Updated 08/14/25

Sleep meditation for kids: Promoting peaceful nights and restful sleep

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by Liz Harden, MPHPediatric sleep consultant
Children participating in class yoga.
Development

Updated 08/13/25

Yoga poses to calm kids down

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by Liz Harden, MPHPediatric sleep consultant
A baby starting to walk with his mother in the background.
Development

Updated 12/29/25

When your baby starts walking: 6 tips to encourage walking

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by Gemma Coe, BSc (hons) Nursing, PGCE, MPHPediatric Sleep Consultant
A group of four children playing outside.
Development

Updated 08/13/25

Why kids tattle and what you can do about it

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by Camila MarteloPediatric Sleep Consultant
A mother talking to a child.
Development

Updated 03/10/26

How to potty train your child in 3 days

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by Allison JanduOwner & Founder, Potty Training Consultant
A baby signing.
Development

Updated 01/12/26

How to teach your baby sign language: 10 common baby signs

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by Amber LoReDirector of Pediatric Expertise
A caregiver potty training a child.
Development

Updated 12/29/25

How to gradually potty train your child

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by Allison JanduOwner & Founder, Potty Training Consultant
A baby with a pacifier.
Development

Updated 03/10/26

How to wean your child from the pacifier

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by Gemma Coe, BSc (hons) Nursing, PGCE, MPHPediatric Sleep Consultant
Four children having fun.
Development

Updated 01/12/26

How to set yes day rules: 30 ideas for a perfect yes day

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by Camila MarteloPediatric Sleep Consultant
Parents talking to their child.
Development

Updated 12/29/25

Age-by-age guide to lying: How to handle your child's lying

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by Camila MarteloPediatric Sleep Consultant
A man is helping a child put on a backpack, getting ready for the day at school.
Development

Updated 01/02/26

How to introduce a smoother toddler morning routine using a timer

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by Camila MarteloPediatric Sleep Consultant
A person writing in their journal.
Development

Updated 08/14/25

What is positive parenting self-reflection?

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by Camila MarteloPediatric Sleep Consultant
Two young boys playing on their tablets.
Development

Updated 01/20/26

Screen time for toddlers and babies: How much is too much?

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by Camila MarteloPediatric Sleep Consultant
A mother talking to her younger child.
Development

Updated 08/14/25

Logical consequences: What is, examples, difference from punishments

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by Camila MarteloPediatric Sleep Consultant
A child holding a timer.
Development

Updated 08/14/25

When and how do you use timers with kids?

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by Camila MarteloPediatric Sleep Consultant
A young toddler smiling.
Development

Updated 08/14/25

Play activities: What is developmentally and age-appropriate?

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by Molly Mahler, MSOTPediatric Sleep Consultant & Occupational Therapist
Two parents are laughing with their two children.
Development

Updated 01/02/26

Authoritative vs authoritarian parenting styles

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by Camila MarteloPediatric Sleep Consultant
A baby sitting up.
Development

Updated 12/29/25

Babies and sitting: When do babies sit up

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by Amy Bassett, BA, CLC, ALC, IBCLC, RLCPediatric Sleep Consultant & Lactation Consultant
A baby crawling on a turquoise rug.
Development

Updated 12/29/25

When do babies start crawling: 6 tips to encourage crawling

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by Beth Christensen, DPTPediatric Sleep Consultant & Physical Therapist
Development

Updated 01/12/26

Best newborn play and wake activities

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by Beth Christensen, DPTPediatric Sleep Consultant & Physical Therapist
A child and their father are laughing and smiling while playing with blocks.
Development

Updated 08/14/25

7 positive parenting tips to try

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by Camila MarteloPediatric Sleep Consultant
Development

Updated 08/14/25

How to childproof your home

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by Amber LoReDirector of Pediatric Expertise
A baby girl is using a pacifier.
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Updated 01/02/26

When to introduce a pacifier: Can babies sleep with pacifiers?

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by Amy Bassett, BA, CLC, ALC, IBCLC, RLCPediatric Sleep Consultant & Lactation Consultant
A photo of a child meditating.
Development

Updated 01/02/26

Mindfulness for kids: 4 breathwork techniques to try

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by Beth Christensen, DPTPediatric Sleep Consultant & Physical Therapist
Toddler sitting on potty with legs crossed
Development

Updated 03/10/26

Potty training: When and how to potty train boys and girls

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by Allison JanduOwner & Founder, Potty Training Consultant
Toddler sitting on potty while helping her doll sit on a separate potty
Development

Updated 12/29/25

Potty training methods: Which is best for your child?

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by Allison JanduOwner & Founder, Potty Training Consultant
Toddler reading book while sitting on potty
Development

Updated 03/10/26

Potty training regression: Why it happens and how to handle it

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by Allison JanduOwner & Founder, Potty Training Consultant
Toddler on potty with pants around ankles
Development

Updated 03/10/26

10 signs your toddler is ready to start potty training

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by Allison JanduOwner & Founder, Potty Training Consultant
Toddler girl with dad, both smiling
Development

Updated 01/12/26

What to do if your toddler prefers one parent over another

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by M.E. Picher, MA, MED, PHDDevelopmental Psychologist and Registered Psychotherapist
temper tantrums how to deal
Development

Updated 01/12/26

7 ways to deal with toddler temper tantrums

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by M.E. Picher, MA, MED, PHDDevelopmental Psychologist and Registered Psychotherapist
 Baby separation anxiety: Baby crying while mother carries her
Development

Updated 01/12/26

Separation anxiety in babies and toddlers

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by M.E. Picher, MA, MED, PHDDevelopmental Psychologist and Registered Psychotherapist
navy blue illustration of a group of individuals
Development

Updated 08/14/25

Teaching kids about race and racism - Resources for parents

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by Huckleberry TeamNews and updates
Development

Updated 01/02/26

Free (and fun!) resources for families at home during COVID-19

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by Huckleberry TeamNews and updates
dream pee - how to potty train overnight
Development

Updated 12/30/25

How to nighttime potty train: 10 tips to succeed

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by Allison JanduOwner & Founder, Potty Training Consultant