PAss Functional Skills

Venn diagrams and sets

Venn diagrams and sets for GCSE Food Preparation AQA: what it means, how to set the working out, and the questions it is asked in.
  • GCSE
  • AQA
  • Food Preparation
  • Spec R3 · R10 · R18
  • 10 min read
  • 8 revision boxes

Introduction

2 boxes
3 min read

What is venn diagrams and sets?

Listen to this box

Transcript

A short spoken summary of venn diagrams and sets and where it is used.

A spoken walk-through of venn diagrams and sets before you read the notes.
The specification wording is precise here, and the mark scheme follows that wording exactly.
Worth knowing: ≈160\approx 160.
2 rows

The venn diagrams and sets reference table

Read the units in the question before you start; a converted unit is the most common slip.
The layout below is the one the mark scheme expects.

Diagram showing venn diagrams and sets laid out step by step

The same idea drawn out, so the method is visible.
Term
Meaning
Example
Row 1 column 1
Row 1 column 2
49=7\sqrt{49} = 7
Row 2 column 1
Row 2 column 2
a2+b2=c2a^2 + b^2 = c^2
Row 3 column 1
Row 3 column 2
≈160\approx 160

Learning

4 boxes
3 steps

How to work with venn diagrams and sets

Check the answer against an estimate before you move on, so a place-value slip is caught here.
The layout below is the one the mark scheme expects.

Diagram showing venn diagrams and sets laid out step by step

The same idea drawn out, so the method is visible.
  1. Read the question and write down what is being asked for.
  2. Set out the working for venn diagrams and sets in the order the method gives.
  3. Substitute the values and simplify.
Start from the definition and substitute the numbers the question gives you.
Simplify one line at a time: a2+b2=c2a^2 + b^2 = c^2.
Answer: 49=7\sqrt{49} = 7
3 rules

Key facts: Venn diagrams and sets

Work through the method one line at a time and write down what changes at each step.

  • Rule 1

    How venn diagrams and sets behaves in the 1st of the cases the specification names.
    a2+b2=c2a^2 + b^2 = c^2

  • Rule 2

    How venn diagrams and sets behaves in the 2nd of the cases the specification names.
    34×25\frac{3}{4} \times \frac{2}{5}
3 steps

How to work with venn diagrams and sets

The specification wording is precise here, and the mark scheme follows that wording exactly.
The layout below is the one the mark scheme expects.

Diagram showing venn diagrams and sets laid out step by step

The same idea drawn out, so the method is visible.
  1. Read the question and write down what is being asked for.
  2. Set out the working for venn diagrams and sets in the order the method gives.
  3. Substitute the values and simplify.
  4. Check the answer against an estimate before writing it down.
Start from the definition and substitute the numbers the question gives you.
Simplify one line at a time: 34×25\frac{3}{4} \times \frac{2}{5}.
Answer: ≈160\approx 160
2 rules

Key facts: Venn diagrams and sets

Read the units in the question before you start; a converted unit is the most common slip.

  • Rule 1

    How venn diagrams and sets behaves in the 1st of the cases the specification names.
    ≈160\approx 160

  • Rule 2

    How venn diagrams and sets behaves in the 2nd of the cases the specification names.
    ×10\times 10 moves every digit one column left

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Examples

2 boxes
2 marks · worked

Worked example: venn diagrams and sets

Read the units in the question before you start; a converted unit is the most common slip.
1 marks · worked

Practice question 8: ≈160\approx 160

Work through the method one line at a time and write down what changes at each step.

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Common questions

How many marks is venn diagrams and sets usually worth?
Between one and four, depending on how many steps the question asks for.
Is this on the GCSE Food Preparation AQA paper?
Yes — it sits in the Finance and accounts strand.