Life-span Development assignment

Lifespan Development 2222

Milestones of Motor Development

Your textbook is great--- but is not clear-- and even misleading in the chart given for motor development for when movement skills should develop. Use this guideline INSTEAD of your book’s chart for better accuracy.

3.2 months: rolling over	3.3 months: grasping rattle	5.9 months: sitting without support	7.2 months: standing while holding on	8.2 months: grasping with thumb and finger
11.5 months: standing alone well	12.3 months: walking well	14.8 months: building tower of two cubes	16.6 months: walking up steps	23.8 months: jumping in place

**Fifty percent of children are able to perform each skill at the month indicated below. However, the specific timing at which each skill appears varies widely. For example, one-quarter of children are able to walk well at 11.1 months; by 14.9 months, 90 percent of children are walking well. See your lesson for a further discussion of motor development and ‘red flags.’

(Source: Adapted from Frankenburg et al., 2002)