4.1 Reproduction

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

Starting question

Some plants have both female and male reproductive parts.

Do animals exist that have both as well?

Please take out your books and notebook to write in.

Remember the rules

- Show respect to each other

- No laughing at other peoples questions/awnsers

- If I get the feeling that your actions are teasing/bullying you will be send out of the classroom to your mentor

- The class needs to be a safe space for everyone

Alphabet: Think-Pair-Share

• Think: Work on the assignment on your own.
• Write all the letters of the alphabet in your notebook in 3 rows
• Use each letter to write a word that has to do with: reproduction, sexuality, gender, sex, pregnancy, etc.

• Pair: Discuss and compare with your neighbour, improve your answer
• Share: Talk about given answers during plenary session.

learning objectives 

learning objectives: you're able to answer the following questions 

- What are the two main types of reproduction and eventually subtypes?

- What are the pros and cons of these main types of reproduction? 

- How does your body change during puberty?

VIDEO: 

Copy the following table and write down characteristics, pro's & con's while watching the video.  

Sexual reproduction

Asexual reproduction

Before we start: 

gametes = reproductive cells or sex cells (sperm & egg cells) 

USE YOUR BOOK

Read page number 90. 

Use your book to complete the table. 

Sexual reproduction

Asexual reproduction

Slug sex (and some other creatures)

- Slugs are hermaphrodites (both male and female)

- It has egg cells and sperm cells

- A slug still needs a partner to reproduce

Binary fission

Sexual characteristics

Anatomical characteristics that define your sex

Primary > present at birth

Secondary > present after puberty

Who starts puberty first?

1. Boys
2. Girls

Geestelijk

• Volwassen worden
• Seksualiteit
• Relatie(s) beginnen
• Geslachtsgemeenschap

Sociaal 

Man

Primary

Penis and scrotum(balls)

Secondary

Beard, chest hair

Lower voice

Bigger penis and testes

More muscles

Woman

Primary

Vulva (= vagina, labia and clitoris)

Womb

Secondary

Bigger breasts

More rounded shape

Menstrual cycle

Intersex (not the same as hermaphrodite)

• Mix of male and female sexual characteristics
• Visible from birth or later (during puberty)
• 1 in 90 people is intersex
• Biological, very different from transgender!

Raven van Dorst is visible in the photo. You might know them from TV.

Raven was born with true hermaphroditism (a form of intersex) and refers to themselves as a hermaphrodite. 

On doctors' advice, Raven's parents had the external male genitalia surgically removed shortly after birth. Raven describes this procedure and its consequences as traumatic.