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4.2: Using Pregnancy and Childbirth – Student Edition (Human Biology)

Difficulty Level: At Grade Created by: CK-12

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.

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