Lesson Plan: P2.4.06


LESSON PLAN
Teacher Subject Period Date Year Ability LSA/Other Support
Science

Context and
Landmark
Assessment		 P2.4.06
Landmark Assessment: Progress Observation Opportunity
Remember to have high expectations
Lesson Title: Today we are learning about
What are the uses and dangers of the electromagnetic spectrum?
Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding
Success Criteria: You will show your learning by...
  1. (HT only) Radio waves can be produced by oscillations in electrical circuits.
  2. Changes in atoms and the nuclei of atoms can result in electromagnetic waves being generated or absorbed over a wide frequency range.
  3. Ultraviolet waves, X-rays and gamma rays can have hazardous effects on human body tissue.
  4. Gamma rays originate from changes in the nucleus of an atom.
  5. Ultraviolet waves can cause skin to age prematurely and increase the risk of skin cancer.
  6. Going from long to short wavelength (or from low to high frequency) the groups are: radio, microwave, infrared, visible light (red to violet), ultraviolet, X-rays and gamma rays.
  7. Students should be able to give examples that illustrate the transfer of energy by electromagnetic waves.
  8. The effects depend on the type of radiation and the size of the dose.
  9. Students should be able to draw conclusions from given data about the risks and consequences of exposure to radiation.
  10. X-rays and gamma rays are ionising radiation that can cause the mutation of genes and cancer.
  11. Electromagnetic waves have many practical applications. For example: - radio waves - television and radio - microwaves - satellite communications, cooking food - infrared - electrical heaters, cooking food, infrared cameras - visible light - fibre optic communications - ultraviolet - energy efficient lamps, sun tanning - X-rays and gamma rays - medical imaging and treatments.
  12. (HT only) When radio waves are absorbed they may create an alternating current with the same frequency as the radio wave itself, so radio waves can themselves induce oscillations in an electrical circuit.
  13. Different substances may absorb, transmit, refract or reflect electromagnetic waves in ways that vary with wavelength.
  14. Radiation dose (in sieverts) is a measure of the risk of harm resulting from an exposure of the body to the radiation.
  15. 1000 millisieverts (mSv) = 1 sievert (Sv) Students will not be required to recall the unit of radiation dose.
  16. (HT only) Students should be able to give brief explanations why each type of electromagnetic wave is suitable for the practical application.
Think about how you can match the needs of ALL students
Keywords:
  • Transmit: move from one place to another (1)
  • Absorb: when a wave transfers its energy to the material it penetrates. (1)
  • Refract: when waves change speed when they move from one medium to another of different density (1)
  • Reflect: when waves bounce back off a reflective surface (1)
  • Wavelength: family of waves with similar properties (1)
  • Electromagnetic (1)
  • Mutations: random changes to DNA (1)
  • Gamma: the most ionising electromagnetic wave (1)
  • Circuits: An electric circuit is a path in which electrons from a voltage or current source flow (1)
  • Electrical: energy transfer (1)
  • Waves: how energy is transferred but matter is not (1)
  • Ionising: radiation that carries enough energy to remove electrons from atoms (1)
  • X-ray: a type of ionising radiation (1)
  • Oscillation: one complete cycle of a wave (1)
Links: Literacy, Numeracy, SMSC, British values
Memory Anchor:

AFL/Key Questions:
  1. (HT only) How are radio waves produced?
    (HT only) Radio waves are produced by oscillations in electrical circuits.
  2. How can electromagnetic waves be generated?
    Changes in atoms and the nuclei of atoms can result in electromagnetic waves being generated
  3. What types of waves are hazardous on human body tissue.
    X-rays and gamma rays can have hazardous effects on human body tissue.
  4. How are gamma rays generated?
    Gamma rays are emitted from the nucleus. They have no charge or mass.
  5. What effects can Ultraviolet waves cause to the skin?
    Ultraviolet waves can cause skin to age prematurely and increase the risk of skin cancer.
  6. What are three ways that show energy is transferred by electromagnetic waves?
    Some examples of how electromagnetic waves transfer energy are: Radio waves - radios in communication Microwaves - ovens for heating food Infrared radiation - wireless remote controls Ultraviolet - Ultrasound scans Visible light - heat and light from light bulb X-Ray: energy passes through tissue but stopped by bone in X ray imaging Gamma: Energy used to kill pathogens during sterilisation of medical equipment
  7. What effects the outcome of being exposed to radiation?
    The type of radiation and the size of the dose.
  8. What are the risks and consequences of exposure to radiation?
    The risks of exposure to radiation can include radiation poisoning and cancer.
  9. What type of electromagnetic waves are ionising?
    X-rays and gamma rays are ionising radiation that can cause the mutation of genes and cancer.
  10. (HT only) What type of current is produced when radiowaves are absorbed?
    (HT only) When radio waves are absorbed they may create an alternating current.
  11. (HT only) How can the wavelength of electromagnetic waves be varied?
    (HT only) Different substances may absorb, transmit, refract or reflect electromagnetic waves
  12. What units is radiation measured in?
    Radiation dose is measured in sieverts
  13. How many millisieverts are there in 1 sievert?
    1000 millisieverts (mSv) = 1 sievert (Sv)
  14. (HT only) Why is each type of electromagnetic wave suitable for practical application?
    Each member of the electromagnetic wave is suitable for a practical application because it has a small range of frequency and wave length.
Identify questions for high, middle, low and identify questioning techniques- Challenge questions

Learning Phases/Episodes
Think about how you can match the needs of ALL students
Differentiation: AGT, SEND, LLL, Disadvantaged
Remember to check for PROGRESS
Starter Activity Differentiation and Challenge question/task
  • Students to copy and complete the keywords.
  • Teacher reveals missing letters; Students correct mistakes;
  • Discuss the scientific meanings of the words.
  • Students to write down the definitions of the most important / new keywords.
  • Discuss the 'Memory Anchor'.
    • What does it show?
    • How does it relate to the what we are learning about today (title)?
Think about PACE – Develop, consolidate and deepen knowledge, skills and understanding
Teacher or Student lead? Differentiation and Challenge question/task
Progress Check Extension
Remember to give time to apply knowledge, skills and understanding
Teacher or Student lead? Differentiation and Challenge question/task
Progress Check Extension

Teacher or Student lead? Differentiation and Challenge question/task
Progress Check Extension

Teacher or Student lead? Differentiation and Challenge question/task
Progress Check Extension


Plenary Differentiation and Challenge question/task
  • Students to answer the 'Key Questions' with learning partners.
Progress Check
  • Teacher to reveal and discuss the answers to the questions.
 Extension
  • What have learnt about the 'Big Ideas' today?

Homework Differentiation and Challenge question/task