STIs are infections contracted by having close sexual contact with someone who is already infected. Some STIs can be treated and cured with antibiotic medicine whereas others cannot. Many symptoms of incurable STIs can be treated to make them easier to live with. There are over 25 different STIs.

Anyone can contract an STI. Most people who contract an STI do not know that the person they had sexual contact with was infected. When discussing sexual health with students, it is important everyone feels comfortable, safe, and heard. Suggested ground rules are provided in the teacher guidance accompanying the key stage 3 pack.

In this lesson plan, students explore how quickly sexually transmitted infections spread and how this can be prevented through the use of condoms. By looking at chlamydia, students discuss how the infection works, what the symptoms can be, and how the infection can be prevented.

Learning Outcomes:

  • All students will:
  • Understand that infection can be spread easily through sexual contact
  • Understand what students can do to protect themselves against STIs
  • Know that not everyone with an STI has symptoms
  • Understand how easily infections like Chlamydia can spread among young people
  • Most students will:
  • Understand that non-barrier forms of birth control do not protect against STI
  • Begin to explore effective communication within condom use

Activities Include:

  • Main Activity
  • Spreading Infections Test Tube Experiment
  • Extension Activities
  • If Chlamydia Could Talk Group Work
  • Guest Speaker
  • STI Quiz

Curriculum Links:

  • Science:
    • Working scientifically
  • English:
    • Reading
    • Writing
    • Health and prevention
    • Intimate and sexual relationships
    • Sexual health