We talk about merle a lot in this handout, so it seemed. like a good idea to explain what it is (and isnât). The. most important thing to remember is that merle is a. color pattern, not a color by itself. Merle dogs can. come in a variety of colors. The most.
Two years: Toddlers begin walking up and down stairs using a non-alternating stepping pattern with hand held or rail assistance. Three years: Children begin walking up the stairs using an alternating stepping pattern without the handrail and down stairs using a non-alternating stepping pattern. Four years: Children begin walk up and down the stairs using an alternating stepping pattern without support.
If you stand a newborn up on her feet, you'll see that she instinctually moves one foot in front of the other in a walking-like motion. This so-called stepping reflex seems to disappear at around 4 months, but in actuality babies' legs simply become too heavy for their muscles to lift. By 6 months, when you support your baby standing up, she won't slump over because she is learning how to use her leg muscles for strength and her feet for balance. Once the muscles are built up, walking can begin in earnest.