First of all, what’s a misconception?
According to Merium-Webster: a wrong or inaccurate idea or conception
What happens if a student comes up to you and asks:
- “Why do girls have one more rib than boys?”
- “Are all cells as pretty as the ones in the book?”
- “Will an apple grow in my stomach if I eat a seed?”
- “How is global warming real if it’s snowing right now?”
How are you going to respond? What if they don’t believe you?
Well, you’ve come to the right place! Here’s an example of how to deal with a common misconception students may have.
Misconception: Blood is blue in your veins, but turns red when it hits Oxygen.
First of all, it’s important to understand where these misconceptions stem from.
Here is a common diagram of a heart:
See the blue? This could be one of the ways the blue blood misconception comes about.
Here’s what’s probably the most common way this misconception comes about:
Look down at your wrist. See the blue veins? Without any background information, it can be easy to see why someone would think blood is blue when in the vein.
Okay, so now that we know why students may think that their blood is blue, here are some ways to combat this misconception (or any misconception in general).
Option #1: Find a video that may help explain the misconception.
Option #2: Get rid of anything in your classroom that may be encouraging the misconception.
- Having the heart diagram on the left would be encouraging the misconception that blood is blue. Having the heart diagram on the right would be combatting the misconception and giving students the right idea of what color blood actually is.
Option #3: Have examples on hand that combat the misconception.
- Talk about a blood donor clinic. When blood is getting donated, it is red. This blood is not oxygenated since it doesn’t contact oxygen during it’s trip into the bag.
Here’s a great video of actual teachers discussing how to address misconceptions:
These teachers are:
- Activating student’s prior knowledge
- Uses these misconceptions to their advantage by making their instruction more effective
Is blood actually blue? Did dinosaurs and humans live at the same time? Will an apple grow in my stomach if I eat a seed? How will you, as a teacher, use these common misconceptions to your advantage? Let's knock these misconceptions out! @AnnMacKenzie #EDT432 #scienceteaching
— Miss Welsh (@MissWelsh3) February 19, 2019