Do NowDo Now Daily Recording Calendar List two things you like about yourself List two things you do routinely that you feel good about List two.

Puberty

Junior Health

Do Now

Daily Recording Calendar

List two things you like about yourself

List two things you do routinely that you feel good about

List two tasks that are difficult for you to do but you are able to accomplish

Self-Concept

Self Concept: What you think of yourself, physically and mentally Will change during adolescence and

continue to develop into adulthood

Body Image: The way you see your physical self

Three factors that affect your self-concept are body image, emotions, and sexual feelings

http://www.youtube.com/watch?v=L3D0jMIOK_c

Secondary Sex Characteristics

Voice Deepens

Muscle strength increases

Pubic hair appears

Skin releases more oils

Perspiration increases

Breasts Develop

Hips widen

Body fat increases

Shoulders broaden

Hair appears on face and chest

Puberty

Period of sexual development when a person becomes sexually mature and able to reproduce

Begins before you reach adolescence and ends during mid-adolescence Girls 10-17 Boys 11-15

Ovulation & Sperm production

Fertilization

A sperm cell joins with an egg cell Gamete + Gamete = Zygote

Sperm = male reproductive cells

Egg = female reproductive cells

Embryo = Early stage of pregnancy (sesame seed)

Fetus = Human embryo at week 9

Fertilization Fertilization

If one sperm does make its way into the Fallopian tube and burrow into the egg, it fertilizes the egg. The egg changes so that no other sperm can get in. 

At the instant of fertilization, your baby's genes and sex are set. If the sperm has a Y chromosome, your baby will be a boy. If it has an X chromosome, the baby will be a girl.

If the Egg Isn't Fertilized

If no sperm is around to fertilize the egg, it moves through the uterus and disintegrates. Your hormone levels go back to normal. Your body sheds the thick lining of the uterus, and your period starts.

Hormones

Male Sex Hormones- Testosterone produced in testes

-affects the production of sperm and signals certain physical changes at puberty, such as the growth of facial hair

Female Sex Hormones- Estrogen & progesterone produced by ovaries Estrogen- activates certain physical changes at

puberty, controls the maturation of eggs Progesterone- activates changes to a woman’s

reproductive system before and during pregnancy

Endocrine Gland: Female

A brain structure called the hypothalamus causes the nearby pituitary gland to produce certain chemicals, which prompt the ovaries to produce the sex hormones estrogen and progesterone.

Prompted by the hypothalamus, the pituitary gland releases follicle stimulating hormone (FSH) during ovulation

Endocrine Gland: Male

Hypothalamus signals the pituitary gland to release two hormones- Luteinizing hormone (LH) and follicle-stimulating hormone (FSH)

LH triggers testes to begin making testosterone

Testosterone and FSH then trigger the production of sperm

Puberty: Role Playing

Students will chose an event that occurs to an male or female during puberty. Students will work together to develop skits that accurately depict the situation and role play the skit in front of the class.

Examples of situations: What it feels like when a girl gets her period for the first time How a boy feels when he his voice cracks when he's delivering a

talk at school How it feels to have a bad facial blemish right before going to a big

social event What it feels like as awareness of the opposite sex increases How a girl feels when she can't go to a swim party because she

has her period How the smallest boy in the class feels as he watches his peers

shoot up

Rubric

Each group will be graded by a rubric based on the following:

Three points: showed strong research skills- all information completely accurate; answered all the questions correctly; showed maturity and insight into the topic while working with a group in preparing and presenting a skit; participated actively in class discussions.

Two points: showed on-grade research skills- some information is accurate; answered most of the questions correctly; worked well with a group while preparing and presenting a skit; was somewhat engaged in class discussions.

One point: showed below grade level research skills- information is not accurate; answered two questions correctly; had trouble working with a group while preparing and presenting a skit; was not engaged in class discussions.

Discussion Questions

1. What do you think is the single hardest thing about going through puberty? What is the greatest benefit of reaching physical adulthood?

2. What is the relationship between hormones and changes taking place in your body?

3. Describe one fact that you learned about the experience of puberty in the opposite sex. Do you have a greater appreciation now of what members of the opposite sex are experiencing?