Remind students that the male and female reproductive systems are designed to maximize the chances of conception. Pregnancy is a natural consequence of sexual intercourse, not an accident.
Assign the portion of the section relating to pregnancy.
Conduct Activity 3-1: The journey of the Sperm and the Egg.
Emphasize the importance of prenatal care as students learn about the development of the baby in the uterus.
The section ends with a description of childbirth. Be prepared for strong reactions and many questions.
Conclude with Activity 3-2: Boy or Girl?
Fertilization Math Given some assumptions about fertilization, students calculate how long it might take for a sperm to reach an egg.