There are two main options for gaining the required data:
> you can collect them from the school administration's records - this method is recommended if you can trust the quality of the data the school provides and if you do not plan to conduct any survey among children
> if you plan to conduct a survey among school children (for example, on their knowledge and practice), you can include a question: "During the last [specify time period], did you participate in a lesson where the teacher taught you about good hygiene?"
> alternatively, you can do both and then cross-check the data
If you report on the percentage of students who received hygiene education, calculate the indicator's value by dividing the number of students who received hygiene education as part of the school curriculum by the total number of the target schools' students. Multiply the result by 100 to convert it to a percentage.