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      Lesson details

      Learning outcome

      I can explain what drugs are, distinguish between legal and illegal drugs, explain why people might take them and identify the risks involved.

      Key learning points

      1. A drug is any substance that changes how the brain and/or body works.
      2. Many different people take drugs for many different reasons, including medical reasons.
      3. Some drugs are legal, some are legal with age restrictions, and some are illegal.
      4. Drug misuse and taking illegal drugs always carries risks; the risks may increase depending on different factors.
      5. Drug use and poor mental health are closely linked — each can make the other worse.

      Keywords

      • Drug - a substance that changes the way the brain and body work

      • Illegal - when something is against the law

      • Misuse - in this context, using a drug in a way that was not intended, or using an illegal drug

      • Dependency - when a person's body or mind relies on a drug to feel or function normally

      • Risk - possible negative consequences

      Common misconception

      Each drug will affect every person the same way every time.

      How a drug affects a person depends on the drug itself, the person's body, their existing health and other individual differences. The same drug can affect different people in different ways — and can affect the same person differently each time.

      Teacher tip

      Be mindful that some pupils may have personal or family experience of drug misuse. The distancing techniques used throughout this lesson (speaking in the third person, using fictional characters in tasks) are important tools for keeping the lesson safe for all pupils.

      Content guidance

      Depiction or discussion of sensitive content

      Depiction or discussion of sensitive content

      Depiction or discussion of mental health issues

      Supervision

      Adult supervision required

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Match the word to the definition.

      Correct Answer:dosage,the correct amount of medicine to take
      Correct Answer:side effect,an unwanted reaction to medicine
      Correct Answer:allergic reaction,a harmful response to medicine, needing quick help

      Q2.
      What does the word 'legal' mean?

      Correct answer: something that is allowed or permitted by law
      something that is prohibited by law
      something that is neither allowed nor prohibited by law

      Q3.
      What is a prescription?

      Correct answer: a document that allows a person to get medication
      a type of illegal drug
      a recommendation for a type of exercise

      Q4.
      Which of these is a reason why someone might take medication?

      to change their eye colour
      Correct answer: to treat or manage an illness or condition
      to improve their sporting performance
      to help them stay awake at night

      Q5.
      The age of legal responsibility begins at ...

      Correct Answer: ten, 10, 10 years old, ten years old, age 10

      Q6.
      Which of these is an example of looking after your mental health?

      avoiding talking about your feelings
      spending all your time alone
      Correct answer: talking to someone you trust when you feel worried
      ignoring things that are making you stressed

      6 Questions

      Q1.
      What does a drug change?

      Correct answer: the way the brain and body works
      the environment
      drugs do not change anything
      only senses

      Q2.
      Match the word to the definition.

      Correct Answer:risk,possible negative consequences
      Correct Answer:illegal,when something is against the law
      Correct Answer:misuse,using a drug in a way that was not intended, or using an illegal drug
      Correct Answer:dependency,when a person's body/mind relies on a drug to feel/function normally

      Q3.
      Which of these correctly describes the legal status of different drugs?

      All drugs are illegal.
      All drugs are legal with age restrictions.
      Correct answer: Some drugs are legal, some have age restrictions and some are illegal.
      Only medicines are legal.

      Q4.
      In which situation is it acceptable to take prescription drugs?

      when you buy them from someone without a prescription
      when a friend says they worked for them
      when you take someone else's prescribed medication
      Correct answer: when a doctor has prescribed them specifically for you

      Q5.
      Which of the following are risks from misusing drugs?

      Correct answer: increased risk of accidents
      decreased risk of death
      Correct answer: increased risk of dependency
      decreased risk of accidents
      Correct answer: increased risk of poor mental health

      Q6.
      Which of the following might affect how someone's body might react to a drug?

      the person's height
      Correct answer: the person's body weight
      the person's favourite colour
      Correct answer: the person's physical and mental health

      To help you plan your 9 RSHE (PSHE) lesson on: Drugs and their risks, download all teaching resources for free and adapt to suit your pupils' needs...