When We Choose to Not Pounce on "Teachable Moments"

"Don't worry Leon, you can always make some more blood."

I heard Luke say it in passing, consoling his friend, as I was on my way to somewhere else. Not having heard what came before or after, it struck me as both hilarious and intriguing. I couldn't help but try to bring it up again. When next Luke and I met on the playground, I said, "You can always make some more blood."

"It's true, Teacher Tom! Your heart pumps and makes more blood. That's why you don't run out when you bleed." Luke knows a little something about bleeding. "And you know what else? Blood is really blue."

I was sitting on the ground with Audrey and a couple of other kids. Audrey interrupted, "No, blood is red."

"No, really," Luke said, turning to her persuasively, "It's blue inside, but when it comes out it looks red."

"Luke, it's red. I've seen it."

"No really, it's true, it's blue."

I thought I could clarify. "I think what Luke is saying is that blood looks blue when it's inside our body. See my vein?" I showed her my inner wrist. "Doesn't it look blue? Veins are how blood flows in our bodies."

Luke supported me, "That's right, Teacher Tom. That's what I'm saying."

But Audrey had other information. "No, that means the blood is flowing to your heart, and it's red when it flows away from your heart. That's the way blood flows: around and around." She drew a circle in the air with her finger.

Some of the other kids were fascinated with studying the visible veins in their wrists and I was distracted into that conversation, but the science debate continued between our two experts. By the time I re-focused on them Luke was saying, "I guess we're both right."

And Audrey replied, "Yeah, we're both right."

Friendship won out over being right, but not over science. Luke was, of course, correct in his assertion that blood inside the body -- as seen through the skin which reflects blue, but absorbs colors of other wavelengths -- appears blue to the human eye. And, of course, that is the nature of color: we only see what is reflected. It's why everything appears to be the same color, black, in the pitch dark. Audrey was correct in her assertion that blood flowing away from the heart tends to be a brighter red because it is highly oxygenated, while on its return trip it tends to be a sort of purplish-red because it is oxygen-depleted. 

It's tempting, as an adult with a little more information, to step in and correct the flaws in their arguments, to give them the correct, or more correct, or more complete answer. This is the sort of conversation that we so often pounce on as a "teachable moment," but I chose to let them conclude like this. Science is built on inquiry and collegial debate, just like this one. (The angry debate is for politicians and theologians who are too often more invested in winning arguments than understanding)

Luke and Audrey came to the table with essentially true, but incomplete information, which is how we all go through life every day. They each walked away with a little more truth, but their knowledge, like that of all of us, remains incomplete. That is what drives the educated mind, not the knowledge, but the incompleteness, the wanting to know. Education is about discovery. It is about knowing, I can think and find answers. When we leap in with our grown-up "knowledge" we too often rob children of what makes science, or anything for that matter, worth pursuing.

******

This is uncomfortable for me, but I earn most of my income by speaking at education conferences and running in-person workshops. I've had 95 percent of my income wiped out for the next 9 months due to everything being cancelled. I know I'm not the only one living with economic insecurity, but if you like what you read here, please consider hitting the donate button below.

. . . Or even better . . . 

Order my brand new book entitled Teacher Tom's Second Book. We're offering a pre-publication discount through May 10. Books should arrive before the end of May in the US and a little later in Canada. And while you're on our site, you can also purchase my first book, Teacher Tom's First Book, at a discount as well.

Or maybe you would like to sign up up for Partnering With Parents a 7-part e-course designed to help you make allies of the parents of the children you teach. 

Thank you for reading!

I put a lot of time and effort into this blog. If you'd like to support me please consider a small contribution to the cause. Thank you!

-->