test.py

    seen = StudentMaterialIndividualization.objects.filter(student=student_id,
                                                           material__knowledge_goal=knowledge_goal) \
                                                   .order_by('started_at')

    for item in seen:
      material = MaterialVersion.objects.filter(material_key=item.material_key, version=item.version)
      
      
# I am trying to end up with a list of materials so would like to query MaterialVersion but based on restrictions from StudentMaterialIndividualization