Planning fair tests

Primary EducationGrade 6ScienceCV-PRI-G06-SCI-U01-L0545–60 min
Learning LabPractise with explanations. Revise with flashcards. Review what needs more work.

You will learn

  • Write a complete plan.
  • Include variables and repeats.
  • Include safety.
  • Check a plan with a checklist.

Version 0.2 · expanded edition · built from cited public sources Content is based on the official frameworks and sources listed under Sources and standards. No official endorsement is claimed. Written in the style of common primary school assessments. No exam result is promised.

Student lesson

The lesson in 60 seconds

  1. A plan lists question, variables, equipment, method and safety.
  2. Repeats make results reliable.
  3. Checklists catch gaps.
  4. Safety comes first.

Words to know

method
steps to carry out a test
equipment
tools and materials needed
repeat
to do the test again
risk assessment
checking what could go wrong

1. Discover: The planning sheet

Selam plans a test of whether a bigger parachute falls more slowly. She lists her question, variables, equipment and steps, drops each parachute three times, and checks she has thought about safety. “A plan is a map for the investigation,” she says.

Think: What would be missing if she forgot to repeat the drops?

2. Understand: Planning

Idea 1: Parts

A plan includes a question, hypothesis, variables, equipment, a numbered method, a results table and safety notes.

Idea 2: Repeats

Repeat each test at least three times, so one odd result does not mislead you.

Idea 3: Risk

A risk assessment asks what could go wrong and how to prevent it. Use safe heights, clear space and supervision.

Remember: A complete plan has all the parts, repeats and safety checks.

3. Worked examples

Example 1 (I show you): List

Plan parts.

  1. Question.
  2. Variables.
  3. Method.

Answer: All parts.

Example 2 (We do it together): Add

Repeats.

  1. Three drops.
  2. Average.
  3. Reliable.

Answer: Repeat three times.

Example 3 (You try): Check

Safety.

Show the steps and answer
  1. Clear space.
  2. Low height.
  3. Adult nearby.

Answer: Safe plan.

Did you know?

Engineers and scientists write detailed plans so that others can repeat their tests exactly.

Why this matters

A good plan saves time and gives trustworthy results.

4. Explore: Parachute plan

Plan and run a test of parachute size with plastic bags, string and a small weight, dropping each from a low step three times and timing the fall.

  1. Write the plan.
  2. Check with the checklist.
  3. Run the test.
  4. Record in a table.
Think about it: what did you notice?

What did you notice? Bigger parachutes fell more slowly.

Safety first: Drop from a low height of no more than one metre. Clear the area below. Keep faces away. Use lightweight weights only. Adult supervision.

5. Practise

Say it in a sentence

Use these starters when you talk about the lesson. Say them out loud.

  • A ___ is a series of steps for a test.
  • ___ is the tools and materials needed.
  • To ___ is to do the test again.
  • A ___ assessment checks what could go wrong.

Guided practice

Question 1. What is a method?

Steps.

Question 2. What is equipment?

Tools.

Question 3. How many repeats?

At least three.

Independent practice

Level 1: Start

  1. What is a method?
  2. What is equipment?
  3. How many repeats?
  4. What is a risk assessment?
  5. What is a plan?

Level 2: Grow

  1. Why repeat?
  2. Why checklist?
  3. Why safety?

Level 3: Stretch

  1. Write the plan.
  2. Run the test.
  3. Evaluate.

Answers are in the answer key below. Try first, then check.

6. Apply: Science in everyday life

Explain why a plan needs a risk assessment.

Show a sample answer

Give an example.

Another one. Tell a family member one thing from this lesson. Use the words you learned.

Show a sample answer

A clear sentence that uses at least one word from Words to know.

7. Common mistakes

Mistake: “A plan is not needed.”
Fix: Needed.
Another mistake: “One test is enough.”
Fix: Repeat.

8. Lesson summary and revision card

I can…

  • I can write a complete plan.
  • I can include variables and repeats.
  • I can include safety.
  • I can check a plan with a checklist.

9. Check and master

Answer all 14 questions. You will see feedback after each one.

1. A method is a series of …

2. Equipment is the … needed

3. We repeat at least … times

4. A risk assessment checks what could go …

5. A plan should include a results …

6. A checklist helps catch …

7. We drop from no more than … metre

8. We clear the area …

9. We keep … away

10. We need adult …

11. Plans let others … the test

12. A good plan gives … results

Challenge 1. Which is missing from a plan with no method?

Challenge 2. Why repeat a test?

Your result appears here after you answer every question.

10. Key takeaways

  • A plan lists question, variables, equipment, method and safety.
  • Repeats make results reliable.
  • Checklists catch gaps.
  • Safety comes first.

11. Next lesson

Next lesson: Measurement and accuracy. Keep going with the next idea in this course.

Exam practice

These questions are written in the style of common school and international primary assessments. Try them on your own, without looking back. Then check your answers in the marking guide. The marks are shown in brackets.

  1. Define method and risk assessment. [2 marks]
  2. List five parts of a plan. [3 marks]
  3. Explain why repeats matter. [3 marks]
  4. Safety rule. [2 marks]

Total: 10 marks.

Marking guide and model answers
  1. 1 each
  2. Any five [3 marks: 1 per two parts, 1 for completeness]
  3. Odd result [1]; average [1]; reliable [1]
  4. Any [1]; reason [1]

Score guide: 9 to 10 = secure. 6 to 8 = nearly there, revise the parts you missed. Under 6 = work through the lesson again with a grown-up.

Printable worksheet

  1. What is a method?
  2. What is equipment?
  3. How many repeats?
  4. What is a risk assessment?
  5. What is a plan?
  6. Why repeat?
  7. Why checklist?
  8. Why safety?
  9. Write the plan.
  10. Run the test.

Homework

Write a short plan to test which surface is slipperiest for a toy.

Answer key and marking scheme

Question Expected response Marks
1. What is a method? Steps. 1
2. What is equipment? Tools. 1
3. How many repeats? At least three. 1
4. What is a risk assessment? Checks hazards. 1
5. What is a plan? A map. 1
6. Why repeat? Reliable. 1
7. Why checklist? Find gaps. 1
8. Why safety? Avoid harm. 1
9. Write the plan. Plan. 1
10. Run the test. Results. 1
Total 10

Independent practice answers. Level 1: 1 Steps.; 2 Tools.; 3 At least three.; 4 Checks hazards.; 5 A map.. Level 2: 1 Reliable.; 2 Find gaps.; 3 Avoid harm.. Level 3: 1 Plan.; 2 Results.; 3 Sentence..

Quiz answers: 1 B, 2 C, 3 A, 4 B, 5 C, 6 A, 7 B, 8 C, 9 A, 10 B, 11 C, 12 A, Challenge 1 B, Challenge 2 C.

Mastery and remediation

Objective Bronze (Developing) Silver (Proficient) Gold (Advanced)
O1 Write a complete plan Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O2 Include variables and repeats Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O3 Include safety Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation
O4 Check a plan with a checklist Shows this with help from an adult or a picture Does this independently and explains how they know Explains it clearly and uses it in a new situation

Courseversity badge thresholds (overall quiz score): Gold = 90–100%; Silver = 80–89.9%; Bronze = 70–79.9%. A badge is never a full record of progress.

If a learner struggles

  1. Find the misconception: “A plan is not needed.” Needed.
  2. Explain another way: use real objects, pictures or actions first, then words.
  3. Show a simpler example: Write a complete test plan.
  4. Guided practice: work through one example together and let the learner try the next one.
  5. Reassess: use the quiz again or the worksheet.
  6. Move on when the learner shows Silver-level evidence independently.

For parents and guardians

In this lesson your child plans a fair test. You do not need to be an expert to help.

  • Ask “What is your plan?”
  • Check safety together.
  • Praise detail.
  • Ask “how do you know?” after each answer, and listen.
  • Praise effort, not only right answers. Mistakes are how we learn.
  • Ten to fifteen minutes a day is better than one long session.

Teacher package

1–5. Objectives, prerequisites, materials, preparation, duration

Lesson objectives. Learners will: write a complete plan; include variables and repeats; include safety; check a plan with a checklist.

Prerequisite knowledge. Grade 5 ideas: fair tests, repeating measurements, recording data and drawing conclusions.

Materials. Plastic bags, string, weights, stopwatch. Low-resource options: use chalk or charcoal on a board or wall, drawings in the sand, and objects from the classroom instead of printed materials.

Preparation. Prepare a low step.

Suggested duration. 45–60 minutes. It can be split into two shorter sessions.

6–9. Teaching procedure, explanation notes, guided and independent activities

Introduction (5 min). Ask, “What would you need to plan a fair race?”

Explanation (10 min). Teach planning.

Guided activity (10 min). Learners write plans.

Independent activity (10 min). Learners test.

Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.

Key questions. Is anything missing? Is it safe?

Teacher explanation notes. Start with real objects and safe, hands-on observation. Then talk about what was seen, then draw and write. Always say “how do you know?”. Keep to the safety notes, and use local, safe materials.

10–12. Differentiation, formative assessment, common misconceptions

Support. Use real objects and pictures, short sentences and a partner. Let learners point, show or draw instead of writing. Extension. Ask learners to find a new example at home and explain how they know.

Formative assessment. Listen to learners read and explain, ask “how do you know?”, and check the independent work.

Misconceptions. “A plan is not needed.” Needed.

13–15. Assessment questions, answer keys, marking scheme

Use the quiz, the 10-mark exam practice and the worksheet on this page. All answers and marking guides are in the answer sections above. Re-check every answer before use.

16–19. Remediation, enrichment, homework, teacher reflection

Remediation. Write a complete test plan. Enrichment. Look for one new example near your home or school, draw it and explain it to someone. Homework. See above.

Teacher reflection. After teaching, record: which ideas learners understood; which misconceptions occurred; which activities worked; which learners need more practice; and what to improve next time.

Sources and standards

This lesson is based on the sources below, and no official endorsement is claimed. Reference starting points: Next Generation Science Standards, Cambridge Primary Science and the IB Primary Years Programme. Where a standard code is named, it points to the official framework.

Research used to shape this lesson. Courseversity Science curriculum, Grade 6 Unit 1, topic 5; Next Generation Science Standards, science and engineering practices; Cambridge Lower Secondary Science, thinking and working scientifically; IB Primary Years Programme, how we express ourselves and how the world works. These sources informed the lesson.

Learning Lab

14 questions in 3 rounds · 4 flashcards · targeted review. Log in to save your progress.

Learning LabPractise with explanations. Revise with flashcards. Review what needs more work.
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