FreeMathWorksheet
Worksheet · TN-MATH-GR1-46031 · v2.-9

Pythagoras' Theorem — Practice Worksheet

A single-focus worksheet on pythagoras' theorem for Grade 1 Math. Nothing else from trigonometry is mixed in — every question, from warm-up to reflection, assesses this one objective and builds towards mastery.

CoreEdexcel30 min21 marksNo answers on sheet

The full pedagogical ladder, warm-up to reflection.

Grade

Grade 1

Subject

Math

Topic

Trigonometry

Subtopic

Pythagoras' Theorem

Curriculum

Edexcel

Difficulty

Core

Time

30 min

Questions

19

Total marks

21

Worksheet ID

TN-MATH-GR1-46031

Version

v2.-9

Format

A4 · US Letter

Preview & download

Print-ready · high-resolution PDF · minimal ink
FreeMathWorksheet

Practice Worksheet

TN-MATH-GR1-46031 · v2.-9

Pythagoras' Theorem

Grade 1 · Math · Trigonometry · Edexcel

Grade

Grade 1

Subject

Math

Topic

Trigonometry

Subtopic

Pythagoras' Theorem

Curriculum

Edexcel

Difficulty

Core

Time

30 minutes

Total marks

21

Student name

Teacher name

Date

Learning objectives

  • Recognise pythagoras' theorem accurately in math contexts.
  • Explain the underlying rule of pythagoras' theorem in the student's own words.
  • Apply pythagoras' theorem to multi-step and unfamiliar problems.
  • Justify a chosen method and identify errors in another student's work.

Skills assessed

  • Fluency and recall
  • Method and setting out
  • Reasoning and justification
  • Problem solving in context
  • Self-assessment

Instructions

  1. Write your name, your teacher's name and the date in the header.
  2. Answer every question in the space provided. Continue on the back if needed.
  3. Show all working — method marks are awarded even when the final answer is wrong.
  4. Aim to finish in about 30 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 4 marks

Answer quickly. These check you are ready for the topic.

  1. 1.State one fact you already know about pythagoras' theorem.

    [1]
  2. 2.Name one fact you already know about pythagoras' theorem.

    [1]
  3. 3.State one fact you already know about pythagoras' theorem.

    [1]
  4. 4.Circle one fact you already know about pythagoras' theorem.

    [1]

Recall

Bloom: Remember · 4 marks

Complete from memory. No calculator, no notes.

  1. 1.Complete the key term used in pythagoras' theorem described here: item 1.

    [1]
  2. 2.List the key term used in pythagoras' theorem described here: item 2.

    [1]
  3. 3.Complete the key term used in pythagoras' theorem described here: item 3.

    [1]
  4. 4.List the key term used in pythagoras' theorem described here: item 4.

    [1]

FreeMathWorksheet · TN-MATH-GR1-46031 · v2.-9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 1 of 3

FreeMathWorksheet · Grade 1 Math

Pythagoras' Theorem

Basic Practice

Bloom: Understand · 5 marks

Work through each item. Show the step you used.

  1. 1.Work out part 1 using the rule for pythagoras' theorem.

    [1]
  2. 2.Match part 2 using the rule for pythagoras' theorem.

    [1]
  3. 3.Work out part 3 using the rule for pythagoras' theorem.

    [1]
  4. 4.Identify part 4 using the rule for pythagoras' theorem.

    [1]
  5. 5.Work out part 5 using the rule for pythagoras' theorem.

    [1]

Guided Practice

Bloom: Understand · 8 marks

The first step is given. Finish the reasoning.

  1. 1.Complete the method for part 1. Step 1 has been started for you.

    [2]
  2. 2.Using the first step given, finish part 2. Step 1 has been started for you.

    [2]
  3. 3.Complete the method for part 3. Step 1 has been started for you.

    [2]
  4. 4.Complete the method for part 4. Step 1 has been started for you.

    [2]

FreeMathWorksheet · TN-MATH-GR1-46031 · v2.-9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 2 of 3

FreeMathWorksheet · Grade 1 Math

Pythagoras' Theorem

Reflection

Bloom: Create · 0 marks

Not marked. Answer honestly — this guides your next worksheet.

  1. 1.Describe how confident you feel with pythagoras' theorem and what you will practise next.

    [—]
  2. 2.Reflect on how confident you feel with pythagoras' theorem and what you will practise next.

    [—]

FreeMathWorksheet · TN-MATH-GR1-46031 · v2.-9

© 2026 FreeMathWorksheet. Licensed for classroom and home use. Redistribution or resale is not permitted.

Page 3 of 3

Question progression

Recognition → understanding → application → reasoning → mastery. The ladder adapts to Grade 1, and every rung stays on pythagoras' theorem only.

  1. 01Warm-up

    Answer quickly. These check you are ready for the topic.

    Remember4 questions4 marks
  2. 02Recall

    Complete from memory. No calculator, no notes.

    Remember4 questions4 marks
  3. 03Basic Practice

    Work through each item. Show the step you used.

    Understand5 questions5 marks
  4. 04Guided Practice

    The first step is given. Finish the reasoning.

    Understand4 questions8 marks
  5. 05Reflection

    Not marked. Answer honestly — this guides your next worksheet.

    Create2 questions0 marks

Answer key & solutions

Every worksheet auto-generates a complete key with step-by-step solutions, the marking scheme and teacher notes. It prints as separate pages so the student copy stays clean.

Teacher notes

  • Set the warm-up as a five-minute starter; it diagnoses readiness for pythagoras' theorem before you teach.
  • Guided practice is the pivot point — circulate here rather than during independent practice.
  • Mark the reasoning questions with the marking scheme bands, not raw totals, so progress is comparable across variants.
  • Students who band Emerging should repeat the Easy variant of this same subtopic before moving on within Trigonometry.

Common student mistakes

  • Confusing pythagoras' theorem with a neighbouring idea in trigonometry.

Teaching tips

  • Model one worked example of pythagoras' theorem under a visualiser before handing the sheet out.
  • Ask students to predict which question they will find hardest, then check the prediction afterwards.
  • Pair Developing students with Secure students for the guided practice block only.
  • Use the answer key as a self-marking station rather than collecting the sheets in.

Extension activities

  • Challenge worksheet on pythagoras' theorem with justification-only questions.
  • Design your own pythagoras' theorem question and write the mark scheme for it.
  • Link pythagoras' theorem to the next subtopic in Trigonometry and explain the connection.
  • Ten-minute timed practice to convert accuracy into fluency.

Switch version

Same subtopic · same objectives · different job

Frequently asked

What exactly is in the download?
A 19-question, 21-mark sheet with branded header, objectives, skills, instructions, name and date fields, page numbering, footer branding, copyright, worksheet ID TN-MATH-GR1-46031, version v2.-9 and a QR code back to this page.
Does it print correctly on US Letter?
Yes. Switch paper size in the download panel — margins and typography are identical, so nothing reflows or clips.
Is the answer key included?
The student copy prints clean. Toggle answers on to append the answer key, marking scheme and teacher pack.

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