Observe whether the child: sits unsupported on the floor.
What it looks like
Three ways this behaviour shows up as a child grows. Each level includes everyday moments to watch for.
Emerging
Just starting
Can sit briefly but balance is fragile; the child often uses hands for propping or leans into a support and may fall when attention shifts. May sit only on a very stable surface or with legs very wide for stability.
What you might see
When placed sitting on the floor, the child immediately falls to the side or backwards unless held.
The child keeps both hands on the floor for support the whole time and cannot free a hand to pick up a toy.
Sits for a few seconds with no support, then suddenly topples when looking at a toy or person.
Sits only if leaning against an adult/cushion and slides or folds forward when the support is removed.
Uses one or both hands down on the floor to stop falling when reaching toward a toy.
Expected
On track
Sits on the floor without external support in familiar, calm contexts for a short period, and can play with a toy before losing balance. May still wobble or use a hand to steady when reaching or turning.
What you might see
Sits unsupported long enough to hold and examine a toy with two hands for 15–30 seconds.
Wobbles when turning but stays upright without an adult touching them.
Leans forward slightly to look at a toy and returns to upright without falling.
Exceeding
Going further
Sits unsupported consistently across everyday contexts, keeping balance while playing, reaching, or turning. Recovers from small wobbles without needing to put hands down or be repositioned.
What you might see
Sits unsupported for a minute or more while playing with toys using both hands freely.
Reaches to the side for a toy and stays sitting without needing to brace a hand on the floor.
Sits and turns to look behind/sideways without falling over.
Sits unsupported on different surfaces (mat, carpet, outdoors blanket) and keeps balance while playing.
Shifts weight to reach across the body for a toy and stays upright without hands for support.
Moves from sitting to another position (e.g., hands-and-knees) and back into sitting during play without adult help.
Try this at home
Small everyday moments where you can notice this behaviour without setting up anything special.
Floor play: Place two small toys slightly to your child’s left and right and notice whether they can sit on the floor and reach for each toy without using a hand to stop themselves falling.
Story time: Sit your child on the floor with a book and watch whether they can sit upright and turn pages (or hold the book) for about a minute without leaning on you.
Mealtime prep: While you prepare food, put a safe toy basket on the floor nearby and observe whether your child chooses to sit unsupported to explore toys and stays balanced when looking up at you.
Transitions: After a nappy change or after being lifted down from furniture, notice whether your child can settle into sitting on the floor independently and stay upright to start playing.
Connected behaviours
Behaviours that scaffold, follow, or co-emerge with this one.
The framework source and supporting developmental research.
Framework source
Development Matters in the Early Years Foundation Stage (DfE, 2012).
This construct is a verbatim Development Matters (2012) observable behaviour statement for practitioner observation of gross motor development.
Other sources
Folio, M. R., & Fewell, R. R. (2000). Peabody Developmental Motor Scales–Second Edition (PDMS-2). PRO-ED.
PDMS-2 includes norm-referenced gross motor items for stationary control that align with progression toward independent sitting stability.
Five-level rubric (detailed)ShowHide
The full progression underlying the three levels above. Used by the platform’s reasoning agent when planning activities and observations.
Not Yet
Needs an adult, a prop, or hands braced on the floor to stay sitting; without support the child quickly topples. Sitting is not maintained long enough to engage with toys.
When placed sitting on the floor, the child immediately falls to the side or backwards unless held.
The child keeps both hands on the floor for support the whole time and cannot free a hand to pick up a toy.
Emerging
Can sit briefly but balance is fragile; the child often uses hands for propping or leans into a support and may fall when attention shifts. May sit only on a very stable surface or with legs very wide for stability.
Sits for a few seconds with no support, then suddenly topples when looking at a toy or person.
Sits only if leaning against an adult/cushion and slides or folds forward when the support is removed.
Uses one or both hands down on the floor to stop falling when reaching toward a toy.
Developing
Sits on the floor without external support in familiar, calm contexts for a short period, and can play with a toy before losing balance. May still wobble or use a hand to steady when reaching or turning.
Sits unsupported long enough to hold and examine a toy with two hands for 15–30 seconds.
Wobbles when turning but stays upright without an adult touching them.
Leans forward slightly to look at a toy and returns to upright without falling.
Secure
Sits unsupported consistently across everyday contexts, keeping balance while playing, reaching, or turning. Recovers from small wobbles without needing to put hands down or be repositioned.
Sits unsupported for a minute or more while playing with toys using both hands freely.
Reaches to the side for a toy and stays sitting without needing to brace a hand on the floor.
Sits and turns to look behind/sideways without falling over.
Reflexive
Uses sitting as a stable base flexibly (different floor surfaces, slight bumps, varied leg positions), can rotate/reach widely without loss of balance, and independently transitions in and out of sitting during play.
Sits unsupported on different surfaces (mat, carpet, outdoors blanket) and keeps balance while playing.
Shifts weight to reach across the body for a toy and stays upright without hands for support.
Moves from sitting to another position (e.g., hands-and-knees) and back into sitting during play without adult help.
