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Let's look again at that developmental elevator. A baby reaches each developmental floor equipped with certain competencies. How these competencies flower into skills depends upon interaction with the care giving environment baby finds on that floor. If the interaction is responsive and enriching, baby gets back on the elevator with more skills, and the ride up to the next floor is much smoother. Because baby reaches the next floor with more skills, the interaction on the next level of development is even more rewarding.

How Babies Grow

Here are some basic principles that will help you understand the enjoy the individual variations of your baby.

Getting-Bigger Charts

At each well-baby checkup your doctor will plot your baby's height, weight, and had circumference on a growth chart. In the most commonly used charts, each line represents a percentile, which means that's where your baby is, compared with hundred other babies. For example, the fiftieth percentile, or average, means that one half of babies plot above the line, the other half below. If your baby plots in the seventy-fifth percentile, he is larger than average. Twenty-five babies plot above your baby, and seventy-five below. Note that these charts are not infallible. They represent averages of thousands of babies. Average growth is not necessarily normal growth. Your baby has his or her individual normal growth. These charts are simply handy references to alert the doctor to any unhealthy trends.

Getting-Smarter Charts

Your baby gets bigger not only in size but also in competence. Developmental charts show the average age at which infants perform the most easily identifiable skills, such as sitting or walking, called developmental milestones. The developmental chart used most by pediatricians, the Denver Developmental Screening Test (DDST), shows that 50 percent of children walk at one year of age, but the normal range for beginning to walk is ten to fifteen months of age. Expect your baby to show uneven development in many of the developmental milestones. He may plot "ahead" in one milestone and "behind" in another.

Progression Is More Important Than Timing

When a child does what is not as important as moving through a progressive sequence of developmental milestones. Your baby will progress from sitting to pulling up to standing to walking. He may accomplish these motor milestones at different ages than the baby next door. B they both will follow a similar progression. Compare your baby only with himself as he was a month ago.

Infants spend different amounts of time at each stage before moving on to the next higher stage. Some infants seem to make a quick stop at one level ant then quickly progress to the next. Some may skip a level entirely. Avoid the neighborhood race to see whose baby walks first. Milestone races are neither an indication of baby's smartness nor a badge of good parenting.

Why Infants Grow Differently

Not only do babies look and act differently from one another, they grow differently. That's what makes them unique. It helps parents to understand the wide variation in normal growth patterns and the way that many of life's little setbacks may affect growth and development.

Not only do babies look and act differently from one another, they grow differently. That's what makes them unique. It helps parents to understand the wide variation in normal growth patterns and the way that many of life's little setbacks may affect growth and development.

Baby's body type.
Your baby is endowed with tall and slim genes, short and wide genes, or in-between genes. Ectomorphs (tall and slim "bananas") often put more calories into their height than weight, so that they normally plot above average in height and below in weight, or they may start out hovering around the average line and eventually begin a stretching-out phase, soaring up the chart in height but leveling off in weight. Mesomorphs ("apples") show a stocky squared-off appearance. They usually center around the same percentile in both height and weight. Endomorphs ("pears") plot in the reverse of ectomorphs, often charting in a higher percentile for weight than height. All of these variations are normal and indicate the importance of looking at your baby (and his family tree) while looking at the chart, and putting the two together.

Growth Wholesale OEM Brushless DC Motor spurts.
While the chart implies a smooth, steady progression, many babies don't grow that way. Some babies grow in bursts and pauses, and when you plot them on the growth chart, you notice periodic growth spurts followed y periods of leveling off. Other babies show a consistent, steady increase in height and weight over the first year.

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