Running an election is a good way to let everyone have a say. In this example, we will be voting for the tastiest vegetable, but if you design your own ballot papers, you can use this method to run an election about anything!

- A group of people (around 20 is good)
- A pencil for each person
- A ballot paper for each person (download ballot papers here, 3 per page)
- Cardboard box with lid
- Scissors
- Sticky tape
- Permanent markers
- A sign for each of the candidates, and one for informal votes to help with the counting (download the vote signs here)

- Check that the cardboard box is empty.
- Carefully cut a slit in the lid with scissors.
- Tape the lid onto the box.
- Draw patterns on the edge of the lid and the box, so you can tell if someone opens it.
- Find somewhere that people can fill in their ballot in private.

- Get everyone together in a group.
- Explain to everyone:
- Everyone will get one vote.
- To be a valid vote, they must number each candidate; putting a 1 next to the candidate they think tastes the best, a 2 next to their second preference, and so on.
- Once they have finished, put the completed ballot in the box.

- Hand out ballot papers and pencils, and direct voters to a private place so they can fill out their ballots in secret.
- Once everyone has filled in their votes, remember to vote yourself!

- Print out a sign for each candidate and for informal votes. Arrange the signs around the room to mark where piles of counted votes should go.
- Ask for some volunteers to help count votes.
- Check the pattern on the lid and the box to make sure it hasn’t been opened.
- Empty the box, and give the ballots to your volunteers.
- Ask the volunteers to do the following:
- Take a ballot, and check if each box has been numbered.
- If all the boxes are numbered, find the candidate numbered 1 and put that ballot with the candidate’s sign.
- If the ballot is incorrectly filled, put it with the informal ballot sign.

- When all the ballots are sorted, count each pile.
- Add all of the candidates’ votes together to get a total number of formal votes. Divide the total by two, round down if needed, and then add 1. This is the number of votes needed for a majority.
- If any candidate has a majority of votes, they win!
- If not, exclude the candidate with the least votes. This candidate can no longer win the election. Take all their ballots. Read the second preference (the candidate labelled 2) off each, and put the ballot with the appropriate sign.
- Recount the piles. If anyone has a majority of votes, they win!
- If no one has won yet, exclude the candidate with the fewest votes. Take all their ballots. For each ballot taken, read their preferences out, starting from the number 2 and going down. Stop when you find a candidate who has not yet been excluded, and put the ballot with the corresponding sign.
- Keep excluding candidates (step 11) until someone is the winner.

There are many ways to run an election. The simplest is often called ‘first past the post’. Each person votes for a candidate, and the candidate with the most votes wins. This system is simple and easy to understand, but it’s not necessarily the fairest system.

Imagine a first-past-the-post election on favourite foods with five candidates. Four candidates are vegetables, and one is a fruit. Each vegetable gets 15% of the votes, and the fruit gets 40% of the vote, so the fruit wins. But more people voted for a vegetable!

With a preferential system, the winner must be somewhat popular to avoid being excluded. Also, more than half of all voters prefer the winner to any of the non-excluded candidates. Although preferential voting is complicated, it gives a fairer result.

*If you’re after more maths activities for kids, subscribe to Double Helix magazine!*

31 December, 2013 at 11:53 am

election…

i love elections.

I want to do prime minster (or president) elections!