What Are the Physical Development Characteristics of Sixth Graders?

Physical development, including sexual characteristics and the onset of puberty, is a process; a young person's body develops progressively, and not necessarily at the same rate and age as his peers. Sixth graders are usually 11 to 12 years old, and they must cope not only cope the increased academic demands of middle school, but also with their changing bodies.

Skin and Hair

The hormonal changes that signify puberty prompt the sebaceous glands of a preteen to produce more oil. Your sixth grader's hair and skin might look more greasy than it has in the past, and your child can develop acne during this stage of development. According to the Centers for Disease Control and Prevention, girls in this age range are more likely than boys to see these changes in their skin and hair, because girls generally mature at an earlier age than boys.

Body Frame

Both boys and girls between the ages of 10 and 12 tend to hit a growth spurt that increases both their height and weight as they head toward puberty. Girls' hips begin to widen, and their body mass index or body fat measurement might increase to prepare for adulthood. Defined muscle development is a physical characteristic for boys in the sixth-grade age range.

Voice Changes

A boy of 11 or 12 years old can start to experience voice changes as an early sign of puberty. Your son's voice may crack intermittently, according to the Palo Alto Medical Foundation, before permanently settling into a deeper register.

Sexual Development

Sexual development can occur in the sixth grade. Preteens begin to grow hair under their arms and in their genital regions. Girls might begin to grow breasts and have their first periods. Boys in this age group might need to shave, experience nocturnal emissions and normal physical growth of their penises and testicles. Not every 11- to 12-year old child will experience these changes at once, and some stages of puberty, such as menstruation, can come significantly later, according to TeensHealth from Nemours. Talk to your family physician about concerns related to early or late development, or any other issue that worries you about body changes.

References

Article reviewed by Alison Gaynor Last updated on: Jun 21, 2010

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