TempoLife › Features › Teacher and school pack › plate-portion-activity
What does a portion look like?
A hands-on activity where students use the hand-portion method and a balanced-plate model to plan a meal, then label a blank plate. Focus is on estimating amounts without a scale, not on calories or dieting.
Learning objectives
By the end of the activity, students can:
- Use the hand as a rough guide to portion sizes (palm, cupped hand, fist, thumb).
- Apply a balanced-plate model (about half vegetables, a quarter protein, a quarter starchy carbohydrate).
- Explain why the same weight of two foods can differ greatly in energy (energy density).
- Plan a balanced plate of their own.
The activity
- Starter (10 min): introduce the hand method — palm ≈ a protein portion, cupped hand ≈ rice or pasta, fist ≈ vegetables, thumb ≈ fats like butter or oil. Have students hold up each one.
- Input (10 min): show the balanced-plate model and discuss energy density — why a plate of salad and a plate of chips can weigh the same but differ hugely in calories.
- Task (20 min): students complete the worksheet — the portion table and the label-the-plate diagram.
- Plenary (5 min): share a few plates; discuss that portions scale with the person (a bigger hand, a bigger portion).
The worksheet
This prints as a clean sheet — press print and the site header, footer and this instruction row drop away. Photocopy for a class as needed.
The hand method gives a rough portion guide that scales with your own body: palm ≈ protein, cupped hand ≈ rice/pasta, fist ≈ vegetables, thumb ≈ fats.
| Hand guide | A portion of… | A food you would use it for |
|---|---|---|
| Palm | protein | |
| Cupped hand | starchy carbohydrate | |
| Fist | vegetables | |
| Thumb | fats |
Plan a balanced plate
Label the plate below: shade about half for vegetables or salad, a quarter for protein, and a quarter for a starchy carbohydrate. Write what you would put in each part.
1. Two plates weigh the same, but one is salad and one is chips. Which has more energy (calories), and why?
2. Why does the hand method give different portion sizes for different people?
3. Design a balanced plate you would actually eat. List what is in each section.
Answer key
- 1. The chips: they are far more energy-dense (more fat, less water), so the same weight carries many more calories.
- 2. Because the hand scales with body size, so a larger person gets a proportionally larger portion — which is roughly what they need.
- 3. Any sensible plate that is about half vegetables, a quarter protein and a quarter starchy carbohydrate.
Teacher notes
- Keep the language about balance and estimation, not calorie-counting or weight. For this age group, portion awareness is a life skill; dieting talk is not appropriate and can do harm.
- The energy-density idea (water adds weight but no calories; fat is very energy dense) is the key scientific takeaway and links to the energy-balance lesson.
- If any student seems anxious about food or eating, treat it seriously and follow your school's pastoral routes rather than pursuing it in the lesson.
A teaching resource, not medical or dietary advice. Handle food, sleep, sugar and energy topics sensitively with young people, and follow your school's pastoral and safeguarding procedures if a pupil raises a concern.
Frequently asked questions
What level is this for?
Suits lower-secondary science, food or health.
Can I print and photocopy it?
Yes — press print (Ctrl+P / Cmd+P) and the site chrome disappears, leaving the worksheet. It is free for classroom use.
Is there an answer key?
Yes, at the foot of this page. Decide whether to project, hide or hand it out.
Source: Standard public guidance (EFSA reference values, EU labelling rules, Atwater energy factors) and simple arithmetic · checked 2026-09-02
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