You will learn
- Analyse data.
- Compare with criteria.
- Identify causes.
- Draw conclusions.
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
- Use mean and range.
- Spot anomalies.
- Compare with criteria.
- Base conclusions on evidence.
Words to know
the difference between highest and lowest values
a result that does not fit the pattern
facts that support a conclusion
how well a design does its job
1. Discover: The strange result
Three trials show loads of 480 g, 500 g and 810 g. “The last one is odd,” says Efua. “Maybe the tape was stronger there,” says Ms Larbi. They check, find a double layer, and note the anomaly in their report.
Think: Should we include the 810 in the mean?
2. Understand: Analysis
Idea 1: Summarise
Calculate the mean and range of repeated trials. Display results on a bar chart (to compare designs) or a line graph (to show change). An anomaly should be investigated and reported, not hidden.
Idea 2: Compare
Compare performance with each criterion: pass or fail, with numbers. Identify strengths and weaknesses and use evidence to find where and why the design failed.
Idea 3: Conclude
A conclusion states whether the criteria were met, what the data show and what to improve. Avoid claims that the evidence does not support.
3. Worked examples
Example 1 (I show you): Calculate
Mean and range.
- 480.
- 500.
- 520.
Answer: 500 and 40.
Example 2 (We do it together): Spot
Anomaly.
- 810.
- Pattern.
- Check.
Answer: Outlier.
Example 3 (You try): Compare
Criteria.
Show the steps and answer
- Target 450 g.
- Mean 500 g.
- Pass.
Answer: Meets.
Did you know?
Engineers often learn the most from failures: broken parts show exactly where a design is weakest.
Why this matters
Good analysis turns data into better designs.
4. Explore: Data detectives
Use your own test data to calculate the mean and range, draw a bar chart, compare to criteria and write two strengths and two weaknesses.
- Calculate.
- Chart.
- Compare.
- Write.
Think about it: what did you notice?
What did you notice? One criterion was met well; another was not.
5. Practise
Say it in a sentence
Use these starters when you talk about the lesson. Say them out loud.
- The ___ is the highest minus the lowest.
- An ___ does not fit the pattern.
- ___ is facts supporting a conclusion.
- ___ is how well a design does its job.
Guided practice
Question 1. Range?
High minus low.
Question 2. Anomaly?
Odd result.
Question 3. Evidence?
Facts.
Independent practice
Level 1: Start
- Range?
- Anomaly?
- Evidence?
- Mean?
- Pass?
Level 2: Grow
- Why investigate anomalies?
- Why charts?
- Why evidence?
Level 3: Stretch
- Chart.
- Compare.
- Conclude.
Answers are in the answer key below. Try first, then check.
6. Apply: Science in everyday life
Write a conclusion from your data.
Show a sample answer
State the criteria, data and improvement.
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
Fix: Report all.
Fix: Check range.
8. Lesson summary and revision card
- I can analyse data.
- I can compare with criteria.
- I can identify causes.
- I can draw conclusions.
9. Check and master
Answer all 14 questions. You will see feedback after each one.
Your result appears here after you answer every question.
10. Key takeaways
- Use mean and range.
- Spot anomalies.
- Compare with criteria.
- Base conclusions on evidence.
11. Next lesson
Next lesson: Improving designs. 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.
- Define range and anomaly. [2 marks]
- Calculate mean and range. [3 marks]
- Write an evidence-based conclusion. [3 marks]
- Safety rule. [2 marks]
Total: 10 marks.
Marking guide and model answers
- 1 each
- Mean [1]; range [1]; units [1]
- Criteria [1]; data [1]; improvement [1]
- 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
- Range?
- Anomaly?
- Evidence?
- Mean?
- Pass?
- Why investigate anomalies?
- Why charts?
- Why evidence?
- Chart.
- Compare.
Homework
Make a chart of your results.
Answer key and marking scheme
| Question | Expected response | Marks |
|---|---|---|
| 1. Range? | High minus low. | 1 |
| 2. Anomaly? | Odd result. | 1 |
| 3. Evidence? | Facts. | 1 |
| 4. Mean? | Average. | 1 |
| 5. Pass? | Meets criterion. | 1 |
| 6. Why investigate anomalies? | Learn. | 1 |
| 7. Why charts? | Compare. | 1 |
| 8. Why evidence? | Trust. | 1 |
| 9. Chart. | Graph. | 1 |
| 10. Compare. | Table. | 1 |
| Total | 10 |
Independent practice answers. Level 1: 1 High minus low.; 2 Odd result.; 3 Facts.; 4 Average.; 5 Meets criterion.. Level 2: 1 Learn.; 2 Compare.; 3 Trust.. Level 3: 1 Graph.; 2 Table.; 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 Analyse data | 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 Compare with criteria | 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 Identify causes | 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 Draw conclusions | 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
- Find the misconception: “Ignore results we do not like.” Report all.
- Explain another way: use real objects, pictures or actions first, then words.
- Show a simpler example: Analyse performance.
- Guided practice: work through one example together and let the learner try the next one.
- Reassess: use the quiz again or the worksheet.
- Move on when the learner shows Silver-level evidence independently.
For parents and guardians
In this lesson your child analyses test data. You do not need to be an expert to help.
- Look at a graph together.
- Ask “What does it show?”
- Praise honest reporting.
- 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: analyse data; compare with criteria; identify causes; draw conclusions.
Prerequisite knowledge. Grade 5 ideas: the engineering design process, testing and improving a solution.
Materials. Data tables, graph paper, rulers. 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. Copy data.
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). Show three results and ask, “Which is odd?”
Explanation (10 min). Teach analysis.
Guided activity (10 min). Learners calculate.
Independent activity (10 min). Learners conclude.
Assessment and reflection (5 min). Ask each learner to say one thing they learned and how they know it.
Key questions. What do the data show? Where did it fail?
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. “Ignore results we do not like.” Report all.
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. Analyse performance. 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 11, topic 8; Next Generation Science Standards, engineering design; Cambridge Lower Secondary Science, thinking and working scientifically; IB Primary Years Programme, how we organise ourselves. These sources informed the lesson.