Lesson Plan: C1.5.08


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

Context and
Landmark
Assessment		 C1.5.08
Landmark Assessment: Progress Observation Opportunity
Remember to have high expectations
Lesson Title: Today we are learning about
What infomation does yield tell you?
Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding
Success Criteria: You will show your learning by...
  1. Even though no atoms are gained or lost in a chemical reaction, it is not always possible to obtain the calculated amount of a product because: ??? the reaction may not go to completion because it is reversible ??? some of the product may be lost when it is separated from the reaction mixture; ? some of the reactants may react in ways different to the expected reaction.
  2. The amount of a product obtained is known as the yield.
  3. When compared with the maximum theoretical amount as a percentage, it is called the percentage yield. % Yield = Mass of product actually made / Maximum theoretical mass of product ? 100
  4. Students should be able to calculate the percentage yield of a product from the actual yield of a reaction
  5. (HT only) calculate the theoretical mass of a product from a given mass of reactant and the balanced equation for the reaction.
Think about how you can match the needs of ALL students
Keywords:
  • Yield (1)
  • Mixture (1)
  • Reversible (1)
  • Chemical Reaction (1)
Links: Literacy, Numeracy, SMSC, British values
Memory Anchor:

AFL/Key Questions:
  1. (Chem only) Suggest why it is not always possible obtain the calculated amount of product from a reaction?
    You may not always get the maximum yield because the reaction may not go to completion because it is reversible, some of the product may be lost when it is separated from the reaction mixture; or some of the reactants may react in ways different to the expected reaction.
  2. (Chem only) What does the term yield refer to?
    The amount of product obtained
  3. (Chem only) What is percentage yield?
    When the actual yield obtained is compared with the maximum theoretical yield of a reaction is expressed as a percentage, it is called the percentage yield.
  4. (Chem only) What is the formula for calculating percentage yield?
    % Yield = Mass of product actually made / Maximum theoretical mass of product ? 100
  5. (Chem only) What mass of carbon dioxide is formed when 12 g of carbon is burned in air?
    1.Write out the equation for the reaction. Make sure it is balanced. C O2 -> CO2 (Carbon is the known, carbon dioxide is the unknown) 2.Work out the relative masses of the substances needed in the calculation. Mass of carbon = 12, mass of carbon dioxide = 44 3.Convert the relative masses into the units in the question. Mass of carbon = 12 g, mass of carbon dioxide is 44 g 4.Find the ratio by dividing both numbers by the smallest number. For carbon 12 ? 12 = 1, for carbon dioxide 44 ? 12 = 3.67 5.Find the mass of the unknown by multiplying the mass of the known by the ratio of the unknown. 3.67 ? 12 = 44 g
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