Equipment Metre rulers x 6 White Tack Graph

Equipment Metre rulers x 6 White Tack Graph Paper Height table printable x 1 per student (if needed)

Variation 2 L. A. : Describe variation as Continuous or Categoric STARTER: Word Builder Continuous and categoric variation

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?

Continuous Data This data is called continuous because the scale of measurement e. g. we can travel a distance of 1. 2 and 1. 85 and even 1. 632 miles.

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

Types of data Where do you think these belong? Shoe size, height, weight, eye colour, sex

Discontinuous Look at the students around the class and create a tally chart for their eye colour. Eye Colour Tally Blue Brown Hazel Plot a bar chart of the results on graph paper

Continuous Using the rulers provided around the room to measure heights of everybody (Share your measurements once you have them). Height (cm) 140 -144 What sort of graph 145 -149 should be drawn 150 -154 with this data? 155 -159 160 -164 165 -169 170 -174 175 -179 Frequency

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