Motor Development in Toddlerhood

All 5 Terms & Definitions

Locomotor refinement

The process by which early walking — characterised by a wide base, high step, and elevated arms — transitions into the smooth, efficient, heel-to-toe gait of older children and adults. Takes approximately 6–12 months after first independent steps, with significant individual variation. Running (18 months), galloping (2–3 years), and skipping (3–4 years) emerge sequentially.

Context-specificity of motor learning

Adolph's key finding that toddlers who are experienced walkers on flat surfaces must re-learn locomotion on slopes, stairs, and novel surfaces. Motor skill is not a general-purpose capacity; each perceptual-motor context poses a distinct learning problem. Toddlers who "know" how to walk down a ramp may still step off a too-steep slope — they lack transfer to the new context.

Stair climbing

A complex coordinated skill emerging across toddlerhood. Ascending with support (~18 months) → descending with support (~20–24 months) → ascending with alternating feet (with handrail, ~24–30 months) → alternating feet ascending and descending without support (~30–36 months). Each step reflects improved bilateral coordination and perception-action calibration.

Fine motor progression

Across toddlerhood, fine motor control advances from the pincer grip to purposeful manipulation: stacking 2–3 blocks (15–18 months), turning pages singly (18–24 months), stacking 6+ blocks (24–30 months), unscrewing lids (24 months), snipping with scissors with assistance (30–36 months). Scribbling → controlled marks → recognisable shapes follows a parallel course.

Throwing and catching

Ball skills emerge in toddlerhood but remain rudimentary. Throwing at 18 months is a whole-arm forward fling with poor accuracy. Catching at this age is typically a passive "trapping" of a large, slow ball against the chest. Both skills undergo marked improvement across the preschool years as eye-hand coordination and trunk rotation develop.