Within an exercise, you need to select your audience.

## Audience

The **audience** defines for what kind of student the exercise is meant. For example, the audience can be set to “Key Stage 3, United Kingdom” or “Gymnasium, Deutschland”. AlgebraKiT uses this audience to automatically adjust the mathematical notation, worked solutions, and hints and error feedback.

Let’s consider solving the equation a^2+a-20=0 for a. The following worked solutions are automatically generated by AlgebraKiT based on the audience:

##### Key-Stage 3 (UK) worked solution:

##### Grade 2 (Belgium) worked solution:

Note how the language of the explanations of the steps is different. Also, the notation for the final answer differs between the United Kingdom and Belgium.

You can select the audience of an exercise at the top of the edit-page:

Which audiences are available to the authors can be defined in the subject settings.

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You now have a basic understanding of the basic ingredients of an AlgebraKiT exercise. Let’s continue with a short introduction to the first of all different interaction types: the **algebra** interaction type.