How Babies Learn Through Shaking: Rattle Play at 7–8 Months

How Babies Learn Through Shaking: Rattle Play at 7–8 Months

3 min read · For babies aged 7–8 months

A rattle may look like a simple sound-making toy, but to a seven- or eight-month-old baby it offers an important discovery: “When I move my hand, something happens.”

By grasping, turning, shaking and tapping a rattle, your baby begins connecting an action with its result. The sound provides immediate feedback, while repetition helps the developing brain notice patterns and anticipate what may happen next.

For a wider overview of movement, sensory exploration and communication at this stage, read our guide to baby development at 7–8 months.

Why is a rattle more than a sound-making toy?

When your baby moves a rattle and hears a sound, several systems work together. The eyes locate the object, the hands grasp it, the arm creates the movement and the ears receive the result.

With repetition, your baby may begin to notice:

  • a larger movement creates a stronger sound;
  • a small movement may create a quieter sound;
  • the sound stops when the hand stops;
  • turning or tapping the rattle changes the experience;
  • the same action can make the sound happen again.

This is an early form of cause-and-effect learning. Your baby is not learning through an explanation. They are learning by acting, listening and repeating.

How does rattle play support hand skills?

A baby may first hold the rattle in one hand and move the whole arm. As control improves, they may bring the second hand towards it, change their grip or turn the rattle to inspect another side.

Your baby may also:

  • hold it with one or both hands;
  • transfer it between the hands;
  • rotate it while looking closely;
  • tap it against the floor;
  • shake it in short bursts;
  • bring it towards the mouth for supervised exploration.

There is no single correct way to use a rattle. Turning, tapping and mouthing are all part of investigating the object.

Five simple rattle activities

1. One shake and a pause

Gently shake the rattle once, then hold it still. Wait several seconds before repeating.

The pause gives your baby time to locate the sound, look at the rattle and process what happened.

2. Let your baby create the sound

Place the rattle within comfortable reach rather than shaking it continuously for your baby.

Once your baby grasps it, allow even accidental movements to produce the sound. Avoid immediately correcting the grip or demonstrating again.

3. Listen on the left and right

While your baby is awake and calm, make one gentle sound slightly to the left. Pause and watch whether your baby turns their eyes or head towards it.

Repeat later on the right. Keep the rattle visible and never shake it close to the ear.

4. Take turns

Shake the rattle once and offer it to your baby. When your baby makes a sound, smile or say:

“You shook it. I heard the sound.”

This creates a simple back-and-forth interaction. Responsive exchanges between babies and caregivers help build early communication and learning.

5. Hide and reveal

Let your baby see the rattle, then move it slowly behind a light cloth or partly out of view. Make one quiet sound and pause.

Reveal it again before your baby becomes frustrated. The aim is gentle curiosity, not testing whether your baby can find it.

Why is the pause important?

Adults often repeat a sound quickly because they want to maintain the baby’s interest. But without a pause, the experience can become adult-led and overwhelming.

A pause allows your baby to:

  • listen after the sound has stopped;
  • look towards its source;
  • move the rattle independently;
  • anticipate another sound;
  • signal whether they want to continue.

You may notice anticipation when your baby becomes still, looks at the rattle, lifts a hand, smiles or moves excitedly before the next shake.

How to avoid too much sound stimulation

Rattle play should be gentle and brief. Loud, rapid or continuous shaking can provide more stimulation than your baby needs.

Reduce or stop the activity when your baby:

  • repeatedly turns away;
  • startles or becomes tense;
  • stops reaching;
  • arches backwards;
  • becomes fussy or cries;
  • appears tired or overwhelmed.

Use the rattle away from the ears and avoid shaking several sound-making toys at once. One sound followed by quiet is often more useful than constant noise.

Using the Shake & Discover Rattle

The Shake & Discover Rattle is designed for grasping, turning and creating sound through the baby’s own movement.

During supervised play, place it near the centre of your baby’s body or slightly to one side. Allow your baby to reach, grip and discover the sound without directing every movement.

The Owloo Grab & Grow Play Kit for 7–12 Months includes play experiences for grasping, repetition, sensory exploration and early cause-and-effect discovery.

Frequently asked questions

How long should rattle play last?

There is no required duration. One or two minutes may be enough. Follow your baby’s interest rather than trying to complete every activity.

What if my baby only mouths the rattle?

Mouthing is a normal form of sensory exploration. Allow it when the rattle is age-appropriate, clean, intact and used under direct supervision.

Should I teach my baby how to shake it?

You can demonstrate once, but then wait. The most useful discovery happens when your baby’s own movement creates the sound.

The Owloo approach

A rattle does not need to make constant noise to support meaningful play. Offer it, wait and allow your baby to discover the connection between movement and sound.

Shake once. Pause. Let your baby respond.


Written by Tina Krapez, Owloo Co-founder & COO

Tina Krapez is the Co-founder and COO of Owloo, where she helps create thoughtful play solutions and educational resources that support parents through their baby’s early development. Her work focuses on turning developmental knowledge into simple, practical guidance families can use in everyday play.

View Tina Krapez on LinkedIn


Sources and further reading

  1. American Academy of Pediatrics — Cognitive Development in Infants: 4 to 7 Months
  2. Centers for Disease Control and Prevention — Milestones by 9 Months
  3. Centers for Disease Control and Prevention — Milestones in Action: 9 Months
  4. Harvard Center on the Developing Child — Serve and Return
  5. Great Ormond Street Hospital — Speech and Language Development from Birth to 12 Months