The CradleNote learning library
Baby activities, milestones, and little memories
Find simple baby activities by age, understand developmental observations, and share the little moments with your care circle.
Start with your baby’s age or something you are curious about. Every guide is free to read and made for parents, grandparents, nannies, and the people who share your day.
Find play ideas for your baby’s age
Begin with the closest guide and adapt the invitation to your baby’s comfort and interests. Age guides are a starting point, not a schedule.
4 months · 5 play ideas
Activities for your 4-month-old
Five gentle activities for a 4-month-old: sound games, easy reaching, short tummy play, songs, and picture-book chats.
Read the guide6 months · 5 play ideas
Activities for your 6-month-old
Five simple play ideas for your 6-month-old, with step-by-step instructions, everyday materials, and little moments to share with your care circle.
Read the guide
9 months · 5 play ideas
Activities for your 9-month-old
Five simple activities for a 9-month-old, including toy hide-and-find, container play, babbling, taking turns, and supported floor play.
Read the guide
12 months · 5 play ideas
Activities for your 12-month-old
Five everyday play ideas for a 12-month-old: clapping rhymes, container play, shared looking, gestures, and picture books.
Read the guideA closer look at a little game
A closer look at play · Faces & connection
Mirror play for babies: three simple ways to try it
A practical guide to baby mirror play: a safe setup, three gentle games, ways to follow your baby’s interest, and a moment to share afterward.
Read the guide
A closer look at play · Floor time together
Tummy-time play: simple ideas for awake moments
Make supervised tummy time a shared moment with a familiar face, a simple sound, or a nearby toy, with clear safety guidance and flexible ways to try.
Read the guideUnderstand what you’re noticing
Clear summaries of CDC age checkpoints, with everyday examples and room for uncertainty. These guides support observation and do not replace developmental screening.
Developmental observations · By 6 months
6-month milestones: what to notice in everyday life
A plain-language guide to the CDC’s six-month developmental checkpoint, with everyday observation notes and a way to record memories without guessing a first date.
Read the guide
Developmental observations · By 9 months
9-month milestones: little observations worth sharing
Explore the CDC’s nine-month developmental checkpoint: expressions, babbling, gestures, object exploration, and sitting, with practical observation examples.
Read the guideKeep your circle part of the story
Small observations. Clear sources. Room to be human.
The CradleNote team adapts activities from our Growth catalog and links the CDC, AAP, and Harvard sources that inform the guidance. We add practical setups and caregiver examples. The examples are illustrative, and the source organizations do not endorse CradleNote. You can enjoy an activity without photographing it or deciding that a milestone was achieved.
Find a guideRecord the moment, even when you missed the “first”Meet CradleNote
One place for the people who care.
Share the day’s care, find activities to try together, and keep the memories your family makes along the way.
Currently free to download and use. Account required. iPhone app requires iOS 17 or later.