Lesson Fourteen

In this lesson you will learn about using graphs and charts to display data. The data that comes in from your Electric Garden is shown in a graph when you log in to the website. There are lots of different ways to display data! Today you will learn about pie charts, bar charts, and infographics.

This lesson provides some ideas for entering the Electric Garden GIANTS competition best display of data category. Create a poster, report, or infographic using Electric Garden data or other climate data.

Pie Charts

Pie charts are circular charts that represent data. The whole circle or ‘pie’ represents a data set. When split into pie pieces, each slice represent a percentage or proportion of a data set. As an example, let’s look at a survey of everyone at Electric Garden HQ’s favourite vegetables.

  • Broccoli – 9

  • Capsicum – 5

  • Courgette – 3

  • Pumpkin – 6

  • Carrot – 4

pie chart.png

What Electric Garden data could you present in a pie chart? For instance, you could show days when it rained and days with sunshine, or number of seeds that germinated and number of seeds that didn’t grow!

If you don’t have your own data, take a look at the National Institute of Water and Atmospheric Research’s (NIWA) website and look through their climate data. Can you find data for the big town nearest to you?

Bar charts

Another type of graph we could use is the bar chart. This type of graph is good to use when we want to compare numbers as it allows us to easily see the data side by side.

bar chart.png

What Electric Garden data or NIWA climate data could you display in a bar chart?

To draw your own pie charts and bar charts using Python, follow these instructions.


A cool way of presenting data is in the form of an infographic. An infographic is visual way of presenting data and information to people who won’t have necessarily have any background knowledge about the topic.

Take a look at the examples below. What do you like about them? What do you not like? Could you create an infographic using data about your school’s environment, either using Electric Garden data or NIWA data, or both? You could use presentation software such as Powerpoint or Google Slides, or vector art software like Paint or Inkscape.