## Method

Group size

Most assignments you will do by yourself.

The practical assignments will require you to work together with a classmate.

Materials

- Headphones
- Alarmclock
- Cotton (to plug your ears)
- Decibelmeter (you can download one onto your phone from the app store)

Time

To do this assignment you will need about one and a half hours.

Extra

When you are finished with the test on hearing ask your teacher if you should do the extra assignment.