Homeschool Guide: These lesson plans are a guide for parents. Content may contain errors ā€” always cross-reference with official exam board specifications.

C26: Polymers

FoundationHigherAll Boards

4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.

Fastmail

Lesson Overview

Total Lessons: 4
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, CCEA

Learning Objectives

Prerequisites

Materials & Equipment

Lesson 1: Introduction: Polymers

Duration: 50 minutes

Starter Activity (5 minutes)

Quick Recall

3 quick questions to activate prior knowledge about polymers. Use mini-whiteboard or paper.

Main Content (35 minutes)

Parent/Teacher Guide:
Before lesson: Read script below. Prepare materials. Pre-teach key vocab: Polymers.
If stuck: See Troubleshooting below. Break into smaller steps.
Extension: See Stretch & Challenge section.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: Polymers. Goal: by the end you can sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water, using the method shown step by step. Connects to the previous lesson in this unit because you'll reuse its method throughout today's work."
Mins 5-15 - Direct Instruction: 1) Define: "Polymers is..." 2) Key principle: "Most important:..." 3) Draw diagram, label live. 4) Real example: "Like Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water. - a real example worked through in full..."
Mins 15-25 - Guided Practice: Ex1: Teacher models. Ex2: Student tries with guidance. Ex3: Student independent.
Mins 25-35 - Independent Practice: 3-5 questions. Immediate feedback.
Worked Example 1: Basic

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. What is asked? Sodium
  2. Recall knowledge:
  3. Apply:
  4. Check: Check the units named in the question and sense-check the size of your answer.
  5. Answer: State the complete final answer.

Tip: "Show working - method marks > answer marks."

Worked Example 2: Multi-step

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Break down: Separate parts?
  2. Solve each:
  3. Combine: The parts chain: each answer feeds the next step of the question.
  4. Final answer: Evidence cited from the lesson content.
Worked Example 3: Data/Application

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Read data: Axes, units, scale
  2. Patterns: Trends, anomalies
  3. Explain: Why? Using polymers
  4. Conclude: Evidence-based

Common Questions & Troubleshooting

Q: "Why does Polymers work this way?"
A: Analogy: "Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.". Try re-draw or re-write the worked example from memory, then check it against the model answer.
Q: "Wrong answers on calculations."
A: Checklist: units? formula? calculator mode? sig figs?
Q: "Can't remember key terms."
A: Flashcards (term front, def+diagram back). Spaced repetition: day 1, 3, 7.
Q: "Exam wording confuses me."
A: Commands: Describe=what you see; Explain=reasons; Evaluate=pros/cons+judgement; Calculate=working+units.
Q: "Running out of time."
A: 1 mark/min. Skip hard, return. Attempt all - partial marks count.

Assessment & Model Answers

Mastery Checklist:
  • [ ] Define Polymers in own words
  • [ ] Identify features in diagram
  • [ ] Explain process step-by-step
  • [ ] Apply to unfamiliar context
  • [ ] Score 80%+ on past paper question

Model Answer: Past Paper Question

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  • 1 mark: [Key terminology]
  • 1 mark: [Mechanism/process]
  • 1 mark: [Application/example]
  • 1 mark: [Evaluation - Higher]

Model response: "[Complete answer with expected detail/terminology]"

Why full marks: [What makes this strong]

Stretch & Challenge (Grade 8-9):
  • Synoptic links: Connect to C25-alcohols-carboxylic-acids-and-esters / the next lesson
  • Real-world: Research use in industry, medicine or research
  • Advanced calc: Try a more challenging variant
  • Critical: "Evaluate limitations of today's model"
  • Research: Recent discovery on polymers, summarise 100 words

Plenary (5 mins)

Label the Diagram

Unlabelled diagram - write all parts in 1 min

Assessment Criteria

Lesson 2: Core Concepts: Polymers

Duration: 50 minutes

Starter Activity (5 minutes)

Review Previous Lesson

Quick recap: write 3 key points from last lesson on polymers. Use mini-whiteboard or paper.

Main Content (35 minutes)

Parent/Teacher Guide:
Before lesson: Read script below. Prepare materials. Pre-teach key vocab: Polymers.
If stuck: See Troubleshooting below. Break into smaller steps.
Extension: See Stretch & Challenge section.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: Polymers. Goal: by the end you can sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water, using the method shown step by step. Connects to the previous lesson in this unit because you'll reuse its method throughout today's work."
Mins 5-15 - Direct Instruction: 1) Define: "Polymers is..." 2) Key principle: "Most important:..." 3) Draw diagram, label live. 4) Real example: "Like Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water. - a real example worked through in full..."
Mins 15-25 - Guided Practice: Ex1: Teacher models. Ex2: Student tries with guidance. Ex3: Student independent.
Mins 25-35 - Independent Practice: 3-5 questions. Immediate feedback.
Worked Example 1: Basic

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. What is asked? Sodium
  2. Recall knowledge:
  3. Apply:
  4. Check: Check the units named in the question and sense-check the size of your answer.
  5. Answer: State the complete final answer.

Tip: "Show working - method marks > answer marks."

Worked Example 2: Multi-step

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Break down: Separate parts?
  2. Solve each:
  3. Combine: The parts chain: each answer feeds the next step of the question.
  4. Final answer: Evidence cited from the lesson content.
Worked Example 3: Data/Application

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Read data: Axes, units, scale
  2. Patterns: Trends, anomalies
  3. Explain: Why? Using polymers
  4. Conclude: Evidence-based

Common Questions & Troubleshooting

Q: "Why does Polymers work this way?"
A: Analogy: "Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.". Try re-draw or re-write the worked example from memory, then check it against the model answer.
Q: "Wrong answers on calculations."
A: Checklist: units? formula? calculator mode? sig figs?
Q: "Can't remember key terms."
A: Flashcards (term front, def+diagram back). Spaced repetition: day 1, 3, 7.
Q: "Exam wording confuses me."
A: Commands: Describe=what you see; Explain=reasons; Evaluate=pros/cons+judgement; Calculate=working+units.
Q: "Running out of time."
A: 1 mark/min. Skip hard, return. Attempt all - partial marks count.

Assessment & Model Answers

Mastery Checklist:
  • [ ] Define Polymers in own words
  • [ ] Identify features in diagram
  • [ ] Explain process step-by-step
  • [ ] Apply to unfamiliar context
  • [ ] Score 80%+ on past paper question

Model Answer: Past Paper Question

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  • 1 mark: [Key terminology]
  • 1 mark: [Mechanism/process]
  • 1 mark: [Application/example]
  • 1 mark: [Evaluation - Higher]

Model response: "[Complete answer with expected detail/terminology]"

Why full marks: [What makes this strong]

Stretch & Challenge (Grade 8-9):
  • Synoptic links: Connect to C25-alcohols-carboxylic-acids-and-esters / the next lesson
  • Real-world: Research use in industry, medicine or research
  • Advanced calc: Try a more challenging variant
  • Critical: "Evaluate limitations of today's model"
  • Research: Recent discovery on polymers, summarise 100 words

Plenary (5 mins)

Label the Diagram

Unlabelled diagram - write all parts in 1 min

Assessment Criteria

Lesson 3: Application: Polymers

Duration: 50 minutes

Starter Activity (5 minutes)

Review Previous Lesson

Quick recap: write 3 key points from last lesson on polymers. Use mini-whiteboard or paper.

Main Content (35 minutes)

Parent/Teacher Guide:
Before lesson: Read script below. Prepare materials. Pre-teach key vocab: Polymers.
If stuck: See Troubleshooting below. Break into smaller steps.
Extension: See Stretch & Challenge section.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: Polymers. Goal: by the end you can sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water, using the method shown step by step. Connects to the previous lesson in this unit because you'll reuse its method throughout today's work."
Mins 5-15 - Direct Instruction: 1) Define: "Polymers is..." 2) Key principle: "Most important:..." 3) Draw diagram, label live. 4) Real example: "Like Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water. - a real example worked through in full..."
Mins 15-25 - Guided Practice: Ex1: Teacher models. Ex2: Student tries with guidance. Ex3: Student independent.
Mins 25-35 - Independent Practice: 3-5 questions. Immediate feedback.
Worked Example 1: Basic

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. What is asked? Sodium
  2. Recall knowledge:
  3. Apply:
  4. Check: Check the units named in the question and sense-check the size of your answer.
  5. Answer: State the complete final answer.

Tip: "Show working - method marks > answer marks."

Worked Example 2: Multi-step

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Break down: Separate parts?
  2. Solve each:
  3. Combine: The parts chain: each answer feeds the next step of the question.
  4. Final answer: Evidence cited from the lesson content.
Worked Example 3: Data/Application

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Read data: Axes, units, scale
  2. Patterns: Trends, anomalies
  3. Explain: Why? Using polymers
  4. Conclude: Evidence-based

Common Questions & Troubleshooting

Q: "Why does Polymers work this way?"
A: Analogy: "Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.". Try re-draw or re-write the worked example from memory, then check it against the model answer.
Q: "Wrong answers on calculations."
A: Checklist: units? formula? calculator mode? sig figs?
Q: "Can't remember key terms."
A: Flashcards (term front, def+diagram back). Spaced repetition: day 1, 3, 7.
Q: "Exam wording confuses me."
A: Commands: Describe=what you see; Explain=reasons; Evaluate=pros/cons+judgement; Calculate=working+units.
Q: "Running out of time."
A: 1 mark/min. Skip hard, return. Attempt all - partial marks count.

Assessment & Model Answers

Mastery Checklist:
  • [ ] Define Polymers in own words
  • [ ] Identify features in diagram
  • [ ] Explain process step-by-step
  • [ ] Apply to unfamiliar context
  • [ ] Score 80%+ on past paper question

Model Answer: Past Paper Question

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  • 1 mark: [Key terminology]
  • 1 mark: [Mechanism/process]
  • 1 mark: [Application/example]
  • 1 mark: [Evaluation - Higher]

Model response: "[Complete answer with expected detail/terminology]"

Why full marks: [What makes this strong]

Stretch & Challenge (Grade 8-9):
  • Synoptic links: Connect to C25-alcohols-carboxylic-acids-and-esters / the next lesson
  • Real-world: Research use in industry, medicine or research
  • Advanced calc: Try a more challenging variant
  • Critical: "Evaluate limitations of today's model"
  • Research: Recent discovery on polymers, summarise 100 words

Plenary (5 mins)

Exam Question Speed Round

5 quick questions, 1 min each. Mark together.

Assessment Criteria

Lesson 4: Exam Practice: Polymers

Duration: 50 minutes

Starter Activity (5 minutes)

Review Previous Lesson

Quick recap: write 3 key points from last lesson on polymers. Use mini-whiteboard or paper.

Main Content (35 minutes)

Parent/Teacher Guide:
Before lesson: Read script below. Prepare materials. Pre-teach key vocab: Polymers.
If stuck: See Troubleshooting below. Break into smaller steps.
Extension: See Stretch & Challenge section.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: Polymers. Goal: by the end you can sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water, using the method shown step by step. Connects to the previous lesson in this unit because you'll reuse its method throughout today's work."
Mins 5-15 - Direct Instruction: 1) Define: "Polymers is..." 2) Key principle: "Most important:..." 3) Draw diagram, label live. 4) Real example: "Like Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water. - a real example worked through in full..."
Mins 15-25 - Guided Practice: Ex1: Teacher models. Ex2: Student tries with guidance. Ex3: Student independent.
Mins 25-35 - Independent Practice: 3-5 questions. Immediate feedback.
Worked Example 1: Basic

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. What is asked? Sodium
  2. Recall knowledge:
  3. Apply:
  4. Check: Check the units named in the question and sense-check the size of your answer.
  5. Answer: State the complete final answer.

Tip: "Show working - method marks > answer marks."

Worked Example 2: Multi-step

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Break down: Separate parts?
  2. Solve each:
  3. Combine: The parts chain: each answer feeds the next step of the question.
  4. Final answer: Evidence cited from the lesson content.
Worked Example 3: Data/Application

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  1. Read data: Axes, units, scale
  2. Patterns: Trends, anomalies
  3. Explain: Why? Using polymers
  4. Conclude: Evidence-based

Common Questions & Troubleshooting

Q: "Why does Polymers work this way?"
A: Analogy: "Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.". Try re-draw or re-write the worked example from memory, then check it against the model answer.
Q: "Wrong answers on calculations."
A: Checklist: units? formula? calculator mode? sig figs?
Q: "Can't remember key terms."
A: Flashcards (term front, def+diagram back). Spaced repetition: day 1, 3, 7.
Q: "Exam wording confuses me."
A: Commands: Describe=what you see; Explain=reasons; Evaluate=pros/cons+judgement; Calculate=working+units.
Q: "Running out of time."
A: 1 mark/min. Skip hard, return. Attempt all - partial marks count.

Assessment & Model Answers

Mastery Checklist:
  • [ ] Define Polymers in own words
  • [ ] Identify features in diagram
  • [ ] Explain process step-by-step
  • [ ] Apply to unfamiliar context
  • [ ] Score 80%+ on past paper question

Model Answer: Past Paper Question

Q: Sodium sinks in ethanol, fizzes steadily (hydrogen gas), and dissolves. This is less vigorous than sodium with water.

  • 1 mark: [Key terminology]
  • 1 mark: [Mechanism/process]
  • 1 mark: [Application/example]
  • 1 mark: [Evaluation - Higher]

Model response: "[Complete answer with expected detail/terminology]"

Why full marks: [What makes this strong]

Stretch & Challenge (Grade 8-9):
  • Synoptic links: Connect to C25-alcohols-carboxylic-acids-and-esters / the next lesson
  • Real-world: Research use in industry, medicine or research
  • Advanced calc: Try a more challenging variant
  • Critical: "Evaluate limitations of today's model"
  • Research: Recent discovery on polymers, summarise 100 words

Plenary (5 mins)

Exam Question Speed Round

5 quick questions, 1 min each. Mark together.

Assessment Criteria

šŸ“ Mark Scheme Guidance

How examiners mark C26: Read the command word carefully ā€” State = one word/phrase (1 mark), Describe = pattern or detail (2 marks), Explain = reason with "because" (2ā€“3 marks), Compare = similarities AND differences, Evaluate = both sides + conclusion. Method marks are awarded for correct working even if the final answer is wrong. Always show your working ā€” unexplained answers score zero for AO2.

Success on C26 questions: Underline the command word, count the marks (one mark per point expected), and answer in the format the command word demands.

Board Notes & Revision Links

This lesson is examined by: AQA 8462 | Edexcel 1CH0 | OCR J248 | CCEA units. Tier and paper details vary - always check your board's current specification.

Follow-up revision: C20-alcohols-carboxylic-acids-and-polymers on GCSE Revise (notes, flashcards and auto-graded target tests for this exact topic).

šŸ“ Reference Diagram

Nucleus pāŗ nā° Electron eā» Electron shell

āœļø Draw-Along Instructions

Parent/teacher: Draw the key diagram for organic: start with the main structure, add labels with arrows, then annotate with the key facts from the lesson. Use a ruler for straight lines.

Display the reference diagram (or draw it live) while pupils copy. Check each label as it is added.

Homework & Consolidation

Recommended Resources

šŸŽ“ Smart Lesson (Guided)