FreeMathWorksheet
Worksheet · TN-MATH-GR1-15693 · v3.1

Probability Basics — Practice Worksheet

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

CoreOCR30 min21 marksNo answers on sheet

The full pedagogical ladder, warm-up to reflection.

Grade

Grade 1

Subject

Math

Topic

Statistics

Subtopic

Probability Basics

Curriculum

OCR

Difficulty

Core

Time

30 min

Questions

19

Total marks

21

Worksheet ID

TN-MATH-GR1-15693

Version

v3.1

Format

A4 · US Letter

Preview & download

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

Practice Worksheet

TN-MATH-GR1-15693 · v3.1

Probability Basics

Grade 1 · Math · Statistics · OCR

Grade

Grade 1

Subject

Math

Topic

Statistics

Subtopic

Probability Basics

Curriculum

OCR

Difficulty

Core

Time

30 minutes

Total marks

21

Student name

Teacher name

Date

Learning objectives

  • Recognise probability basics accurately in math contexts.
  • Explain the underlying rule of probability basics in the student's own words.
  • Apply probability basics 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 probability basics.

    [1]
  2. 2.Circle one fact you already know about probability basics.

    [1]
  3. 3.Circle one fact you already know about probability basics.

    [1]
  4. 4.Write down one fact you already know about probability basics.

    [1]

Recall

Bloom: Remember · 4 marks

Complete from memory. No calculator, no notes.

  1. 1.Complete the key term used in probability basics described here: item 1.

    [1]
  2. 2.Label the key term used in probability basics described here: item 2.

    [1]
  3. 3.Define the key term used in probability basics described here: item 3.

    [1]
  4. 4.Label the key term used in probability basics described here: item 4.

    [1]

FreeMathWorksheet · TN-MATH-GR1-15693 · v3.1

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

Page 1 of 3

FreeMathWorksheet · Grade 1 Math

Probability Basics

Basic Practice

Bloom: Understand · 5 marks

Work through each item. Show the step you used.

  1. 1.Complete part 1 using the rule for probability basics.

    [1]
  2. 2.Match part 2 using the rule for probability basics.

    [1]
  3. 3.Match part 3 using the rule for probability basics.

    [1]
  4. 4.Identify part 4 using the rule for probability basics.

    [1]
  5. 5.Match part 5 using the rule for probability basics.

    [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.Complete the method for 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-GR1-15693 · v3.1

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

Page 2 of 3

FreeMathWorksheet · Grade 1 Math

Probability Basics

Reflection

Bloom: Create · 0 marks

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

  1. 1.Describe how confident you feel with probability basics and what you will practise next.

    [—]
  2. 2.Describe how confident you feel with probability basics and what you will practise next.

    [—]

FreeMathWorksheet · TN-MATH-GR1-15693 · v3.1

© 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 probability basics 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 probability basics 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 Statistics.

Common student mistakes

  • Confusing probability basics with a neighbouring idea in statistics.

Teaching tips

  • Model one worked example of probability basics 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 probability basics with justification-only questions.
  • Design your own probability basics question and write the mark scheme for it.
  • Link probability basics to the next subtopic in Statistics 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-GR1-15693, version v3.1 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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