How do you teach a five year old to use a blood glucose monitor?

Hi everyone! I'm a student nurse and for one of my assignments I have to write up an education plan to teach a five year old child how to use their blood glucose monitor as they will be starting preschool in the near future.

I've tried to look up hints and tips, but there doesn't seem to be any specific / detailed strategies or interventions. I was wondering if anyone has experience in either being taught or effectively teaching children around five to use their blood glucose monitor.

Thanks in advance, I really appreciate your input and experiences! :)