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E-Learning ModulePaid subscriptionIncludes a check

Geometry — Module 4: Pythagoras’ theorem

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Key stage
GCSE
Subject
Mathematics
Time
~20 min
Access
Paid subscription
Assessment
Included
🔒

Complete these first

This module unlocks once you have completed:

📖 More information Tap to read

What you'll learn

  • Geometry & Measures
  • Pythagoras' theorem AQA GCSE 8300 §3.4 / G20

Inside this resource

  • 4 slides

For the student — how to do this

Work through the teaching and activities, then take the check. Score 80% to earn the badge and unlock the next module — you can retake any time.

For parents and carers

Each module unlocks the next only when your child passes at 80%. A pass meets the threshold for this check. Use discussion and further practice to identify what needs revisiting.

For teachers and tutors

Gated revision sequence mapped to AQA 8300 §3.4 Geometry. Pass mark 80%; results and per-question review feed the heatmap.

How to check the work

Ask the learner to show or explain one idea, then try a fresh example with suitable support. Note any prompts needed; retelling alone does not show secure understanding.

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How to study with Geometry — Module 4: Pythagoras’ theorem

This parent guide links the page examples with a practical study routine. The present resource is labelled Mathematics, GCSE, Year 10, Year 11, E-Learning Module. Use that context, the learning summary and published prompts to agree what secure work should reveal.

Prepare a focused session

Read the title and learning focus together. Ask the learner to predict the understanding, language or technique they may need. Scan each sample and spot action words, amounts, clues, limits or new terms. Agree a realistic time window, clear diversions and collect useful tools such as paper, pencil, ruler, coloured pens, calculator, headphones or a device. Encourage an unaided initial attempt so the response shows secure understanding and doubt. A quiet pause often strengthens retrieval better than an instant answer.

Make thinking published

Invite the learner to summarise the task in their own words. They can underline essential information, break a larger problem into smaller steps, draw a demonstrate, arrange details, practise a sentence or describe a planned method. Ask why their method fits and whether another strategy could work. When progress stops, offer a carefully scaled hint: state again the goal, point towards a useful example, limit the choice, then demonstrate only the next step. Return ownership immediately afterwards. Spoken reasoning exposes mistakes and practises accurate subject language.

Check accuracy and understanding

Compare the attempt with published answer guidance after honest effort. Inspect more than the final response: review the method, explanation, units, details, sequence, spelling or presentation where useful. Ask the learner to identify the initial point where their reasoning changed direction. Complete corrections actively in a different colour or separate space, followed by a brief note of the change. For a correct answer, request support and one unaided check. This separates assured understanding from guessing while developing accuracy, reflection and careful working habits.

Consolidate and extend

Finish with retrieval from memory. Cover the example and ask for the central idea, process or fact again. Create one small alternative by changing a value, condition, example, viewpoint or level of support while keeping the learning focus. Invite the learner to write a related question and supply checking guidance. Record one success and one precise next step, perhaps reviewing terminology, rehearsing a calculation, adding details or refining clarity. Recheck that target later in the week because spaced review gives better information than instant repetition.

The interactive player, downloadable file and record answer material retain their existing access controls. The guide strengthens preparation, discussion and review.

Sample questions and answers

Try five questions from this exact activity. Review each authored answer and explanation, then note which ideas need another look. Compare the options and explain why the answer fits. Say the reasoning aloud or write a short justification before opening the interactive player to complete the activity and save progress.

  1. A right-angled triangle has shorter sides 3 cm and 4 cm. Find the hypotenuse.

    • 5 cm
    • 6 cm
    • 7 cm
    • 12 cm

    Sample answer: 5 cm

    Explanation: √(3² + 4²) = √25 = 5 cm.

  2. A right-angled triangle has shorter sides 6 cm and 8 cm. Find the hypotenuse.

    • 10 cm
    • 12 cm
    • 14 cm
    • 48 cm

    Sample answer: 10 cm

    Explanation: √(6² + 8²) = √100 = 10 cm.

  3. A right-angled triangle has shorter sides 5 cm and 12 cm. Find the hypotenuse.

    • 13 cm
    • 15 cm
    • 17 cm
    • 60 cm

    Sample answer: 13 cm

    Explanation: √(5² + 12²) = √169 = 13 cm.

  4. A right-angled triangle has hypotenuse 13 cm and one shorter side 5 cm. Find the other side.

    • 8 cm
    • 10 cm
    • 12 cm
    • 18 cm

    Sample answer: 12 cm

    Explanation: √(13² − 5²) = √144 = 12 cm.

  5. A right-angled triangle has shorter sides 8 cm and 15 cm. Find the hypotenuse.

    • 17 cm
    • 19 cm
    • 23 cm
    • 120 cm

    Sample answer: 17 cm

    Explanation: √(8² + 15²) = √289 = 17 cm.

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