aerobic and anaerobic exercise
4 detailed 50-minute lessons with teaching scripts, worked examples, parent guides, and assessment criteria.
Lesson Overview
Total Lessons: 4
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, Eduqas, CCEA
Tier: Foundation and Higher
Duration: 50 minutes per lesson (200 minutes total)
Exam Boards: AQA, Edexcel, OCR, Eduqas, CCEA
Learning Objectives
- Explain the key ideas of aerobic and anaerobic exercise
- Apply aerobic and anaerobic exercise to exam-style questions
- Develop independent study skills
- Build cross-topic connections
Prerequisites
- Read the revision notes for aerobic and anaerobic exercise first (GCSE Revise summary)
- Key vocab to pre-teach: Key Principle, ATP-PC (Alactic) System, Recovery
- Basic skills: reading the summary notes and answering the practice questions there
Materials & Equipment
- Exercise book, coloured pens
- Ruler
- Printed revision notes (link below)
- Internet for videos (see Resources)
Lesson 1: Introduction: aerobic and anaerobic exercise
Duration: 50 minutes
Starter Activity (5 minutes)
Quick Recall
Write down everything you already know about aerobic and anaerobic exercise. Then check against the key terms: Key Principle, ATP-PC (Alactic) System, Recovery. Use a mini-whiteboard or paper.
Main Content (35 minutes)
Parent/Teacher Guide:
Before lesson: Read the script below. Pre-teach key vocab: Key Principle, ATP-PC (Alactic) System, Recovery.
If stuck: Re-read the revision notes (link above), then break the content into smaller steps.
Extension: See the Stretch & Challenge ideas in Lesson 4.
Before lesson: Read the script below. Pre-teach key vocab: Key Principle, ATP-PC (Alactic) System, Recovery.
If stuck: Re-read the revision notes (link above), then break the content into smaller steps.
Extension: See the Stretch & Challenge ideas in Lesson 4.
Teaching Script (35 mins):
Mins 0-5 - Hook: "Today: aerobic and anaerobic exercise. By the end you will be able to answer exam questions on it unaided. It connects to the rest of Physical Education because the ideas here recur across the spec."
Mins 5-20 - Direct Instruction: Work through the core ideas below one at a time; after each, ask your student to explain it back in their own words.
Mins 20-30 - Guided Practice: Model the worked example together, then let your student attempt the first practice question with guidance.
Mins 30-35 - Independent Practice: 2-3 practice questions from Lesson 3 below, with immediate feedback.
Mins 0-5 - Hook: "Today: aerobic and anaerobic exercise. By the end you will be able to answer exam questions on it unaided. It connects to the rest of Physical Education because the ideas here recur across the spec."
Mins 5-20 - Direct Instruction: Work through the core ideas below one at a time; after each, ask your student to explain it back in their own words.
Mins 20-30 - Guided Practice: Model the worked example together, then let your student attempt the first practice question with guidance.
Mins 30-35 - Independent Practice: 2-3 practice questions from Lesson 3 below, with immediate feedback.
First Look
Start with the revision notes summary, then attempt: Write the word equation for aerobic respiration.
Plenary (5 minutes)
Check Out
Your student states one thing they learned and one question they still have about aerobic and anaerobic exercise.
Lesson 2: Core Concepts: aerobic and anaerobic exercise
Duration: 50 minutes
Starter Activity (5 minutes)
Review Previous Lesson
Quick recap: write 3 key points from Lesson 1 on aerobic and anaerobic exercise. Check them against the notes below.
Main Content (35 minutes)
Key Principle: The body needs energy (in the form of ATP - adenosine triphosphate) to fuel muscle contraction. This energy is released by breaking down fuel stores. Depending on the intensity and duration of exercise, the body uses different energy systems.
Definition: Aerobic exercise is exercise performed "with oxygen." It uses the aerobic energy system, which breaks down glucose using oxygen to release energy. This is the main energy system for low-to-moderate intensity, long-duration activities.
Definition: Anaerobic exercise is exercise performed "without oxygen." It uses the anaerobic energy system, which breaks down glucose without oxygen to release energy quickly. This is the main system for high-intensity, short-duration activities.
ATP-PC (Alactic) System: The immediate energy system for very short, explosive efforts (0-10 seconds). Uses stored phosphocreatine (PC) in the muscles to resynthesise ATP without producing lactic acid. It is called "alactic" because no lactic acid is produced.
Anaerobic Glycolytic (Lactic Acid) System: Provides energy for high-intensity efforts lasting approximately 10 seconds to 2 minutes . Breaks down glucose without oxygen, producing lactic acid as a by-product. The build-up of lactic acid causes muscle fatigue and a burning sensation.
EPOC (Excess Post-exercise Oxygen Consumption): Also known as oxygen debt . It is the amount of oxygen required during recovery to restore the body to its pre-exercise state after anaerobic exercise.
| Term | Meaning | Example |
|---|---|---|
| Oxygen used? | Yes | No |
| Intensity | Low to moderate | High to maximal |
| Duration | Long (minutes to hours) | Short (seconds to ~2 minutes) |
| Waste products | CO₂ and water | Lactic acid |
| ATP per glucose | Up to 38 ATP | 2 ATP |
| When dominant | Steady-state, endurance activities | Sprint, burst, power activities |
| Example | Marathon, cycling, jogging | 100m sprint, weightlifting, shot put |
| Fuel | Phosphocreatine (PC) | Glucose/glycogen |
Practice (10 minutes)
Q: Write the word equation for aerobic respiration.
Answer: Glucose + Oxygen → Carbon Dioxide + Water + Energy
Plenary (5 minutes)
Explain Back
Your student teaches the key points back to you without looking. Fill any gaps immediately.
Lesson 3: Application: aerobic and anaerobic exercise
Duration: 50 minutes
Starter Activity (5 minutes)
Quick Recall
Recall the key terms: Key Principle, ATP-PC (Alactic) System, Recovery. Define each in one sentence.
Main Content (35 minutes)
Parent/Teacher Guide: Let your student attempt each question alone first, then compare with the model answer. Award method marks for correct working even if the final answer is wrong.
Q1: Write the word equation for aerobic respiration.
Answer: Glucose + Oxygen → Carbon Dioxide + Water + Energy
Q2: Write the word equation for anaerobic respiration.
Answer: Glucose → Lactic Acid + Energy
Q3: Explain why a marathon runner uses primarily the aerobic system while a 100m sprinter uses primarily the anaerobic system.
Answer: A marathon is a long-duration, moderate-intensity event (26.2 miles), so the aerobic system can supply sufficient energy using oxygen. A 100m sprint is a very short, maximal-intensity effort (~10 seconds), requiring energy too quickly for oxygen delivery, so the anaerobic system (ATP-PC) provides the immediate energy needed.
Q4: What is EPOC and why does it occur after anaerobic exercise?
Answer: EPOC (Excess Post-exercise Oxygen Consumption) is the additional oxygen consumed after exercise to restore the body to its pre-exercise state. It occurs after anaerobic exercise because the body could not supply enough oxygen during the activity, creating an oxygen debt. The extra oxygen is needed to break down lactic acid, resynthesise ATP and PC stores, and replenish oxygen stores in blood and muscle.
Q5: Explain why an active cool-down is better for recovery than passive rest.
Answer: An active cool-down (light exercise such as jogging) maintains blood flow, which continues to deliver oxygen to muscles and transport lactic acid to the liver for processing. In passive rest, blood flow decreases significantly, meaning lactic acid removal and EPOC repayment are slower.
Q6: What are the three ways lactic acid is removed from the body during recovery?
Answer: Lactic acid is removed by: (1) conversion back to pyruvate and oxidation aerobically in mitochondria, (2) transport to the liver where it is converted back to glucose (Cori cycle), and (3) use as a fuel by the heart and slow-twitch muscle fibres.
Plenary (5 minutes)
Error Review
Review any questions answered incorrectly. Identify whether the error was knowledge, method, or reading the question.
Lesson 4: Exam Practice: aerobic and anaerobic exercise
Duration: 50 minutes
Starter Activity (5 minutes)
Command Words
Review what these command words require: state (one point), describe (say what happens), explain (say why), compare (both sides), evaluate (judgement).
Main Content (35 minutes)
Exam-Style Question
Attempt a past-paper style question on aerobic and anaerobic exercise from the exam board past paper finder (see Resources), then mark it against the scheme.
Exam Tips: Memorise both word equations - they are frequently tested (4-6 marks) | Always explain EPOC in terms of what the extra oxygen is used FOR | Know the difference between alactic (ATP-PC, 0-10 sec) and lactic (glycolytic, 10 sec-2 min) systems | When comparing aerobic vs anaerobic, use a table format in your answer | Active recovery is always preferred over passive - explain WHY (blood flow, oxygen delivery) | Lactic acid causes fatigue - always mention this when discussing the anaerobic system
Common Errors: Watch Out! Students often write "lactic acid" in the aerobic equation. Wrong: "Glucose + Oxygen → Lactic acid + Energy." Correct: "Glucose + Oxygen → Carbon Dioxide + Water + Energy." Students often confuse oxygen debt and EPOC as different things. Wrong: "Oxygen debt and EPOC are two separate concepts." Correct: "EPOC is the modern term for oxygen debt - they refer to the same process of excess oxygen consumption after exercise."
Stretch & Challenge (Grade 8-9):
- Synoptic links: explain how aerobic and anaerobic exercise connects to another Physical Education topic you have studied
- Real-world: research one real-world use or example of aerobic and anaerobic exercise
- Critical: "What are the limitations of the models used in aerobic and anaerobic exercise?"
Plenary (5 minutes)
Assessment Criteria
- Got it: Confident explanation + correct worked examples
- Getting there: Main points OK, needs support with detail
- Not yet: Confused on key concepts - re-run Lesson 2
Homework & Consolidation
- Consolidation: Re-answer any Lesson 3 practice questions answered incorrectly (20 mins)
- Retrieval: Write flashcards for the key terms: Key Principle, ATP-PC (Alactic) System, Recovery (10 mins)
- Exam practice: One past-paper question on aerobic and anaerobic exercise from the board websites (15 mins)
- Extension: Explain aerobic and anaerobic exercise to someone else in your own words (10 mins)