Lesson Plan: P2.1.05


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

Context and
Landmark
Assessment		 P2.1.05
Landmark Assessment: Progress Observation Opportunity
Remember to have high expectations
Lesson Title: Today we are learning about
What happens to an object when it is stretched?
Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding
Success Criteria: You will show your learning by...
  1. Students should be able to give examples of the forces involved in stretching, bending or compressing an object
  2. A force that stretches (or compresses) a spring does work and elastic potential energy is stored in the spring.
  3. Students should be able to explain why, to change the shape of an object (by stretching, bending or compressing), more than one force has to be applied ? this is limited to stationary objects only
  4. Provided the spring is not inelastically deformed, the work done on the spring and the elastic potential energy stored are equal.
  5. Students should be able to describe the difference between elastic deformation and inelastic deformation caused by stretching forces.
  6. The extension of an elastic object, such as a spring, is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.
  7. (MS) force = spring constant ? extension F = k e force, F, in newtons, N spring constant, k, in newtons per metre, N/m extension, e, in metres, m This relationship also applies to the compression of an elastic object, where ?e? would be the compression of the object.
  8. Students should be able to describe the difference between a linear and non-linear relationship between force and extension
Think about how you can match the needs of ALL students
Keywords:
  • Stretching (2)
  • Directly proportional (1)
  • Elastic (1)
  • Extension (1)
  • Limit of proportionality (1)
  • Spring constant (1)
  • Non-linear (1)
  • Linear (1)
  • Inelastic deformation (1)
  • Stationary (1)
  • Compression (1)
  • Compressing (1)
  • Bending (1)
  • Work done (1)
  • Elastic potential energy (1)
  • Forces (1)
  • Energy store (1)
  • Elastic deformation (1)
Links: Literacy, Numeracy, SMSC, British values
Memory Anchor:

AFL/Key Questions:
  1. What forces are involved in stretching, bending or compressing an object?
    Forces may change the shape of an object. An elastic object such as a spring stores elastic potential energy when stretched or squashed. The extension of an elastic object is directly proportional to the force applied.
  2. Why, to change the shape of an object (by stretching, bending or compressing), does more than one force have to be applied?
    If one force only is applied to an object, for example a car, then the object will change speed or direction. If we want to change the shape of an object, we have to apply more than one force to it.
  3. What is the relationship between the work done on the spring and the elastic potential energy stores?
    Provided the spring is not inelastically deformed, the work done on the spring and the elastic potential energy stored are equal.
  4. What is the difference between elastic deformation and inelastic deformation caused by stretching forces?
    Elastic deformation is where a material changes in shape at low stress that is recoverable after the stress is removed. Inelastic deformation is caused a material is stretched beyond its limit of proportionality.
  5. What is the relationship between extension and force for an elastic object, such as a spring?
    The extension of an elastic object, such as a spring, is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.
  6. What is the equation that links force, spring constant and extension? Include SI units.
    (MS) force = spring constant ? extension F = k e force, F, in newtons, N spring constant, k, in newtons per metre, N/m extension, e, in metres, m This relationship also applies to the compression of an elastic object, where ?e? would be the compression of the object.
  7. What is the difference between a linear and non-linear relationship between force and extension?
    A linear relationship between force and extension is a directly proportional one, where a non-linear relationship shows that an elastic object has exceeded its limit of proportionality.
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