YR3_B6_LSN4

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 3

HAVE READY:

• your notebook
• google classroom

LESSON 4

Sexually Transmissable Diseases & Contraceptives

Learning goals:

• I know what STD's can be contracted, how they are caused and how they can be prevented
• I know and can explain what the various methods of contraceptives are and how they work. 
• I know which contraceptives protect you from which things pregnancy/STD.

Key words:

• STD
• Barrier method
  
• Hormonal method
• Contraceptive
• Condoms
• Contraceptive Pill
• Spermicide
• Sterilisation
• Vasectomy

Read pages 2-4 of your I-Book and find the definitions of these words.

Contraceptive methods

Barrier method

- condom

- female condom

- pessarium ( to be used with spermicides)

Hormonal method

- contraceptive pill (progesterone and estrogen)

- hormonal implant

- hormonal ring

- hormonal IUD (intra-uterine device)

Other methods

- copper based IUD

- calendar method (NO NO)

- coitus interruptus (NO NO)

permanent methods

- female sterilisation

- male sterilisation / vasectomy

Barrier methods

Contraceptive pill

21 pills per strip

- 3 weeks on

- 1 week off (menstruation)

contains estrogen and progesterone

- prevents follicle maturation and ovulation

- prevention of implantation

one pill per 24 hours (max 36 hrs)

- diarrhea/vomiting = unprotected

Other hormonal methods

UNSAFE methods

Calendar method                     Coitus interruptus

Permanent methods

female sterilization                     male sterilization 

                                                               vasectomy

Learning goals:

• I know what STD's can be contracted, how they are caused and how they can be prevented
• I know and can explain what the various methods of contraceptives are and how they work. 
• I know which contraceptives protect you from which things pregnancy/STD.

HW FOR LSN 5:

• complete assignments during lesson 4 assignment on classroom
• prepare for lesson 5
•