"Towards Maturity" PPT courseware

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"Towards Maturity" PPT courseware

Part 1: Thinking about the problem

Human development is divided into embryonic development and post-embryonic development.

think?

What growth stages have you gone through?

What growth period are you in now?

Do you know what puberty is?

The first growth spurt: infancy and early childhood

The second growth spurt: adolescence

Toward Maturity PPT, Part 2: Changes in Human Body Appearance

Secondary sexual characteristics appear

Based on your own experience, what changes will happen to a boy’s body during puberty?

Changes in male puberty

1. Increase in height and weight

2. Muscular and broad shoulders

3. Growth of pubic and armpit hair

4. Long beard

5. Protruding Adam’s apple

6. The voice becomes deeper

Based on your own experience, tell us about the changes that occur in a girl’s body during puberty?

Changes in women during puberty

1. Increase in height and weight

2. Growth of armpit hair and pubic hair

3. Breasts begin to enlarge

4. Wide pelvis

5. The voice becomes higher

Towards Maturity PPT, Part Three: Signs of Maturity of Reproductive Organs

Women - Menstruation occurs.

If the egg cell is not fertilized and the endometrium falls off, causing uterine bleeding, this is menstruation (the cycle is about 28 to 30 days)

The first menstrual period for a girl is called menarche (usually starting between the ages of 10 and 16).

Thinking: Are the ovulation cycle and menstrual cycle the same?

Men – nocturnal emissions

After boys enter puberty, their testicles can already produce sperm, so they sometimes discharge semen in their sleep. This phenomenon is called nocturnal emissions (usually starting between the ages of 12 and 18).

Nocturnal emissions and menstruation are normal physiological phenomena for men and women in adolescence, marking the maturation of the owner's reproductive organs!

Towards maturity PPT, the fourth part: Internal organ functions are getting better and better.

(1) Increased cardiac contractility

(2) Increased pulmonary ventilation

(3) The brain regulation function is enhanced, and the ability to understand, analyze problems and make judgments is improved.

It is easier to accept new things during adolescence, which is the best time for learning.

Towards Maturity PPT, Part 5: Physical and mental health in adolescence

1. Ensure comprehensive and rich nutrition;

(Foods containing protein, fat, phosphorus, calcium, etc.)

2. Develop good living habits;

(Work and rest on time, keep a straight posture, participate in regular sports activities, and pay attention to personal hygiene)

3. Treat the secondary sexual characteristics of yourself and your classmates correctly;

Everyone enters puberty at a different time and has different developmental status. Do not comment or make fun of others;

Girls should not wear tight underwear; boys should not pluck their beards and body hair, and they should protect their throats during the voice-changing period.

4. Cultivate self-control ability;

Correctly handle interactions with the opposite sex, be neither humble nor arrogant, and be self-respecting and self-loving;

Avoid puppy love; stay away from tobacco, alcohol, drugs, Internet addiction, etc.

Toward Maturity PPT, Part Six: Aging and Death

Aging is the process of gradual decline in the function of various organ systems in the body.

Specific performance:

Hair turns white, skin sags, teeth fall out,

Activity slows down, feeling becomes dull, diseases increase...

Ways to slow down aging

Live scientifically and rationally;

Keep a relaxed and happy mood;

Carry out cultural and sports activities appropriately.

Keywords: Zhejiang Education Edition seventh-grade science PPT courseware for the second volume free download, toward maturity PPT download, .PPT format;

For more information about the "Going to Maturity" PPT courseware, please click the "Going to Maturity" ppt tag.

"Towards Maturity" PPT download:

"Towards Maturity" PPT download Puberty Concept: It is the period when human gonads begin to develop and reach maturity. It is the transition stage from childhood to adulthood. The World Health Organization considers the age range of puberty to be 10 to 20 years old. Adolescence is the transition from child to "adult"...

"Towards Maturity" PPT:

The first part of the PPT "Towards Maturity": The Growth Period of Human Beings. Which periods have you experienced? What period are we in now? Thinking: 1. Observe Figure 1-11 carefully and talk about which age groups grow and develop fastest. 2. Which of these age groups are equivalent to each other in humans?

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Update Time: 2024-10-05

This template belongs to science courseware Zhejiang Education Edition Seventh Grade Science Volume 2 industry PPT template

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