In my This Week’s Lesson series, I illustrate what my 5th-11th graders are learning in health education, and, more importantly, what I’m learning from my students.

When I talk to my kids about the dozens of diseases that affect this small, poor country — tuberculosis, hepatitis, heart disease — I sometimes worry they feel like I’m picking on them, like I’ve hopped off my white horse to save all God’s children from the big, bad preventable diseases. So this week, I did it different.
Diabetes is personal for me. I was nine when my five-year-old brother was diagnosed, and I still remember the shame I felt when my grandmother told me. After all, I was the one who’d read all the Babysitter’s Club books, and didn’t Ann M. Martin explain how Stacey was diagnosed in every single book? I read everything I could about diabetes, picking up every book my mom finished and asking her what words like glucose and ketone meant.
A few years ago, another family member was diagnosed with diabetes and it became clear — this disease runs in my blood. When I came down with pancreatitis last month, I spent a terrifying 24 hours waiting for test results to show if I was the latest diabetic Toler. I am diabetes-free, but I’ve been taking better care of myself from then on.
My goal for this week was to teach the kids how diabetes really works in the body. To start off, I invite them to a party: The president of Moldova heard you guys are studying about diabetes this week, I tell them. The president knows diabetes is a major health concern here, affecting more than 55,000 in his country of 3.6 million, so to reward you for your efforts, he has declared today to be a day of celebration. And you are all invited.
Only one rule: You have to take public transportation. The capital will be flooded with people for the celebration, so to get there, you’ll have to take the bus.
The class divides into three teams, each drawing a golden ticket to see who gets to the party. Team One waits all day at the bus stop, but their ride never shows up. Team Two manages to find a bus, but all the bus stations in the capital are closed, so they have to pack up and turn around. Team Three manages to find a bus and an open station, so I give them a minute to celebrate.
At this point, the kids are looking at me blankly, wondering what all this has to do with diabetes. The body, I tell them, works the same way the bus system works. Blood vessels act as streets, a place for things to travel back and forth. The body is made up of cells the same way Moldova is made up of cities and villages. Without people, a city would be dead, just like how a cell would die without sugars to convert into energy.
So what’s the bus represent? they ask. Insulin, the hormone that brings sugar into the cells. Buses drive people to the bus station, and insulin drives sugar to the cell’s receptor.

But for people with diabetes, something in the bus system goes wrong. Like Team One, a type 1 diabetic doesn’t have the insulin (buses) to deliver sugar to the cell.
Or, like Team Two, sometimes the receptors (bus stations) are closed so there’s no way for insulin and sugar to get in. That’s why diabetics have high blood sugar levels: there’s nowhere for the sugars (people) to go so they stay in the street (blood vessels).
Once the kids got it, I had one of them turn on some music from their phone and we danced to open our cell receptors. For homework, they are drawing their own bus system, labeling how each step corresponds to the body.
By the end of class, the kids felt so smart being able to explain how a complicated disorder functions in the body; you could just see it in the way they carried themselves as they left class – heads high, backs straight. My 11th grade didn’t even get through the lesson because they had so many questions about insulin dependence.
And whenever the kids got restless, I told them a story about growing up with a diabetic brother, and a soft hush fell over the room like no elementary school teacher has ever heard before, I am sure. I can’t tell if they pitied my family or felt how important the topic was for me or what, but every eye in the room was on me and every mouth hung a little open when I talked about my college-aged brother who takes three or four shots a day. A few kids even shared experiences with their own family.
But then, at the end of my second to last class, my partner teacher told the kids there’s one more way to get diabetes: drinking too much water.
And I remembered all over again why I’m here and how big of a job this really is.