Lesson Plan: C1.4.03


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

Context and
Landmark
Assessment		 C1.4.03
Landmark Assessment: Progress Observation Opportunity
Remember to have high expectations
Lesson Title: Today we are learning about
What are the properties of small molecules?
Remember to check for PROGRESS
Focus on Knowledge, Skills and Understanding
Success Criteria: You will show your learning by...
  1. Substances that consist of small molecules are usually gases or liquids that have relatively low melting points and boiling points.
  2. The intermolecular forces increase with the size of the molecules, so larger molecules have higher melting and boiling points.
  3. Students must be able to recall the chemical formula and draw the covalent bonding for: water, methane, carbon dioxide and ammonia.
  4. These substances have only weak forces between the molecules (intermolecular forces).
  5. These substances do not conduct electricity because the molecules do not have an overall electric charge.
  6. It is these intermolecular forces that are overcome, not the covalent bonds, when the substance melts or boils.
  7. Students should be able to use the idea that intermolecular forces are weak compared with covalent bonds to explain the bulk properties of molecular substances.
Think about how you can match the needs of ALL students
Keywords:
  • Ionic bonding: Bonding that occurs between a metal and a non metal. (1)
  • Covalent bonding: Bonding occurs between two non metals (1)
  • intermolecular forces of attraction: Weak forces between the molecules (1)
  • Molecule: A molecule is an electrically neutral group of two or more atoms held together by chemical bonds. (1)
Links: Literacy, Numeracy, SMSC, British values
Memory Anchor:

AFL/Key Questions:
  1. Substances that consist of small molecules are most commonly which states of matter at room temperature?
    They tend to have lower boiling points, meaning they commonly exist at room temperature either as gases or liquids.
  2. How does the size of a molecule affect the size of its intermolecular force?
    The larger the molecule the greater the size of its intermolecular force. Hence larger molecules tend to have higher melting and boiling points.
  3. Explain why substances that consist of small molecules often have low boiling and melting points
    Smaller molecules tend to have weaker intermolecular forces of attraction. This means only small amounts of energy are required to overcome the intermolecular forces that hold molecules of that substance together.
  4. Why are covalent compounds unable to conduct electricity?
    Because covalent molecules carry no overall charge
  5. What is the difference between intermolecular forces and intramolecular forces?
    Intermolecular forces are the forces of attraction between different molecules of the same substance. Intramolecular forces are the bonds between atoms of the same molecule eg. ionic or covalent bonds.
  6. Which is stronger: A covalent bond or intermolecular force?
    Intermolecular forces are weak when compared with covalent bonds and explain the bulk properties of molecular substances.
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