A student learning programme should be evaluated against its stated objectives. Attendance shows who participated, but it does not establish what students learned or whether they can apply it.
Before delivery, define the expected learning outcomes. Use suitable assessments, demonstrations, project work or reflections to understand students' starting points and progress. Collect feedback from learners and teachers to identify what worked and what needs improvement.
For longer programmes, follow up to understand whether students continue to apply the skills. Protect student data and report results accurately, explaining the method and limitations.