FreeMathWorksheet
FreeMathWorksheet

Quick Practice

TN-MATH-GR1-79393 · v1.4

Pythagoras' Theorem

Grade 1 · Math · Trigonometry · OCR

Grade

Grade 1

Subject

Math

Topic

Trigonometry

Subtopic

Pythagoras' Theorem

Curriculum

OCR

Difficulty

Foundation

Time

10 minutes

Total marks

11

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 10 minutes.
  5. Complete the reflection box at the end before you hand the sheet in.

Warm-up

Bloom: Remember · 2 marks

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

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

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

    [1]

Recall

Bloom: Remember · 2 marks

Complete from memory. No calculator, no notes.

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

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

    [1]

FreeMathWorksheet · TN-MATH-GR1-79393 · v1.4

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

Page 1 of 2

FreeMathWorksheet · Grade 1 Math

Pythagoras' Theorem

Basic Practice

Bloom: Understand · 3 marks

Work through each item. Show the step you used.

  1. 1.Identify part 1 using the rule for pythagoras' theorem.

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

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

    [1]

Guided Practice

Bloom: Understand · 4 marks

The first step is given. Finish the reasoning.

  1. 1.Using the first step given, finish 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]

Reflection

Bloom: Create · 0 marks

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

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

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

    [—]

FreeMathWorksheet · TN-MATH-GR1-79393 · v1.4

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

Page 2 of 2