During da first months og age, da child quickly develops its motor abilities. Afterwards, as fine motos skills develop, advances is coarse motor skills seem less evident.
1 Month - Lifts da head.
2 Months - Lifts da thorax
3 Months - Tries 2 reach objects, but in general can't do so
4 Months - Sits vt support
5 Months - Takes objects
6 Months - Sits vt ease in a high chair and grabs hanging objects
7 Months - Stays sitting
8 Months - Sits on its own
9 Months - Stands by holding on 2 furniture
9 Months - crawls on its abdomen
10 Months - Crawls on hands and knees
10 Months - Walks if held by both hands
11 Months - Stands unaided
12 Months - Walks if taken by da hand
13 Months - Walks unaided
18 Months - Crawls up and down stairs.