Lesson Plan: C1.7.06


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

Context and
Landmark
Assessment		 C1.7.06
Landmark Assessment: Progress Observation Opportunity
Remember to have high expectations
Lesson Title: Today we are learning about
How are metals like aluminium extracted from their ores?
Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding
Success Criteria: You will show your learning by...
  1. Metals can be extracted from molten compounds using electrolysis. Electrolysis is used if the metal is too reactive to be extracted by reduction with carbon or if the metal reacts with carbon.
  2. Large amounts of energy are used in the extraction process to melt the compounds and to produce the electrical current.
  3. Aluminium is manufactured by the electrolysis of a molten mixture of aluminium oxide and cryolite using carbon as the positive electrode (anode).
  4. Students should be able to explain why a mixture is used as the electrolyte
  5. Students should be able to explain why the positive electrode must be continually replaced.
  6. (HT only) students should be able to write half equations for the reactions occurring at the electrodes during electrolysis, and may be required to complete and balance supplied half equations for this process . (MS)
Think about how you can match the needs of ALL students
Keywords:
    Links: Literacy, Numeracy, SMSC, British values
    Memory Anchor:

    AFL/Key Questions:
    1. When is electrolysis used to extract metals from their ores?
      Metals can be extracted from molten compounds using electrolysis. Electrolysis is used if the metal is too reactive to be extracted by reduction with carbon or if the metal reacts with carbon.
    2. What is the main drawback of using electrolysis to extract metals?
      The main drawback of using electrolysis to extract metals is that a large amount of energy is used to melt the compounds and to produce the electrical current.
    3. How is aluminium extracted from its metal ore (aluminium oxide)?
      Aluminium is manufactured by the electrolysis of a molten mixture of aluminium oxide and cryolite using carbon as the positive electrode (anode).
    4. Why is a mixture used as the electrolyte in electrolysis?
      A mixture is used as the electrolyte in electrolysis as the atoms are not chemically bonded they can be separated.
    5. Why does the positive electrode (the anode) need to be replaced regularly?
      Oxygen forms at the positive electrodes (anodes). This oxygen reacts with the carbon of the positive electrodes, forming carbon dioxide, and they gradually burn away.
    6. (HT)What are the missing reactants and products of the half equation shown below: Mg2 ___--> _____
      (HT) Mg2 2e- --> Mg
    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