Some additional duties depend on the scale of the lessons held, e.g. corrections, preparation, follow-up work etc.
These can be specified as follows:
| • | Open the reductions window by selecting 'Lessons | Value Calculation | Reductions'. |
| • | Select the option 'Lesson planned' in the 'Of' column. |
| • | Specify a percentage for this reduction in the '%' column. |

In this example teacher Gauss is given a lesson overhead corresponding to 50% of the scheduled teaching time.