2. Changes During Adolescence (2:00) Click here to launch video Click here to download print activity

3. Adolescence begins with puberty as a person starts to mature physically, emotionally, and mentally.

4. adolescence hormones puberty cognition

5. Puberty: A Time of Changes Adolescents begin moving toward adulthood during puberty. After infancy, adolescence is the second fastest period of growth.

6. Puberty: A Time of Changes Adolescence is a time of many challenges and changes. Adolescence The period between childhood and adulthood

7. Puberty: A Time of Changes Physical Growth Voice Changes Body Begins to Fill Out

8. Puberty: A Time of Changes Puberty usually begins sometime between the ages of 12 and 18. Puberty The time when a person begins to develop certain traits of adults of his or her gender

9. Puberty: A Time of Changes Hormones are chemical substances produced in glands that regulate many of the body’s functions and create changes that affect teens during puberty.

10. Physical Changes During puberty, sex characteristics develop. Sex characteristics are traits related to a person’s gender.

11. Physical Changes Primary sex characteristics relate to the production of reproductive cells, or gametes. The onset of these changes indicates sexual maturity and the ability to reproduce.

12. Physical Changes The male gametes are sperm. The production of sperm by the testes begins at puberty.

13. Physical Changes The female gametes are the eggs, or ova. At birth, a female’s body contains all the eggs she will ever produce. The eggs mature during puberty, with the onset of ovulation.

14. Physical Changes In any group of teens, there is a variety of body sizes and shapes. Growth rates vary from person to person.

15. Physical Changes

16. Mental and Emotional Changes The cerebrum, though, continues to develop during adolescence, increasing memory and cognition. Cognition The ability to reason and think out abstract solutions

17. Mental and Emotional Changes

18. During adolescence you will learn to anticipate the consequences of a particular action think logically understand different points of view

19. Mental and Emotional Changes Most adolescents begin to search for MeaningPersonal valuesA sense of self

20. Social Changes Friends from different cultural backgrounds share their traditions and cultural interests.

21. Accomplishments in Adolescence Adolescents will develop independence, find their identity, and establish their personal values. You will begin to establish career goals, and you will find that practicing healthful, responsible behaviors will help you achieve these goals.

22. Accomplishments in Adolescence Emotional and psychological independence Personal value system Vocational goals Control over behavior

23. After You Read Reviewing Facts and Vocabulary Adolescence is the period between childhood and adulthood. Puberty is the time when a person begins to develop certain traits of adults of his or her gender. 1.Define the terms adolescence and puberty.

24. After You Read Reviewing Facts and Vocabulary 2.What are the reproductive cells of females called? What are those of males called? Female reproductive cells are called eggs. Male reproductive cells are called sperm.

25. After You Read Reviewing Facts and Vocabulary 3.What are some secondary sex characteristics of males that develop during puberty? Males: facial hair, deep voice, broad shoulders, muscle development, receding hairline; females: breasts, narrow waistline, wider hips, increased body fat, menstruation