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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.

Baby on the floor working on rolling over
Development

Updated 01/06/26

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
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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
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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
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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
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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.
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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
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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
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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
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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
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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
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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
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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.
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Updated 12/29/25

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
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Updated 12/29/25

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

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by Deena ShinnParenting content expert
14 month milestones illustrated image
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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.
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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
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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
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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
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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
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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
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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
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Updated 12/29/25

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

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by Deena ShinnParenting content expert
7 month milestones illustrated image
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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
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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
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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
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Updated 12/29/25

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
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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
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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 12/29/25

How to potty train your child in 3 days

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by Allison JanduOwner & Founder, Potty Training Consultant
A baby signing.
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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.
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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.
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Updated 08/14/25

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.
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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.
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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.
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Updated 01/12/26

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.
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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.
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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.
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Updated 01/02/26

Authoritative vs authoritarian parenting styles

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by Camila MarteloPediatric Sleep Consultant
A baby sitting up.
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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.
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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 12/29/25

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 12/29/25

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 12/30/25

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