1. Equipment Metre rulers x6 White Tack Graph Paper
Height table printable x1 per student (if needed)

2. Variation 2 Continuous and categoric variation
Describe variation as Continuous or Categoric
Word Builder
Starter: Students make as many words as possible (4 letters+) not including continuous, categoric or variation.
Each letter can be used once (unless there are multiples in the phrase)
Give vivos for the longest word, Most ‘scientific’ (your choice, pick ones which relate to the topic), and optionally most words over 4 letters
Continuous and categoric variation

3. Types of data
The two types of variation are Continuous and Discontinuous… What do you think they mean?
Extend
Can you think of examples that might go into each category?
Think Pair Share

4. Continuous Data
This data is called continuous because the scale of measurement e.g. we can travel a distance of and 1.85 and even miles.

5. Discontinuous/Discrete Data
This is called discrete data because the units of measurement (for example, CDs) cannot be split up.

6. Types of data
Where do you think these belong? Shoe size, height, weight, eye colour, sex
Categoric – Shoe Size, Eye colour, Sex
Continuous – Height, Weight

7. Discontinuous
Look at the students around the class and create a tally chart for their eye colour. Plot a bar chart of the results on graph paper
Eye Colour
Tally
Blue
Brown
Hazel
As it says on the tin, Students get a copy of the table and use it to make a tally.
Talk through the components of a good graph
Plot a bar graph using the tally.

8. Continuous
Using the rulers provided around the room to measure heights of everybody (Share your measurements once you have them). What sort of graph should be drawn with this data?
Height (cm)
Frequency
Table is a printable if wanted.
Stick rulers to walls with whitetack. Stick the rulers 1m above the floor and have students add 100cm to whatever measure they make

9. Plenary
In 2 paragraphs explain how you are different to the person sitting next to you.
Include in your writing:
What the variations are
If they are Continuous or Discontinuous
If they are Environmental or Genetic