I've always felt, strongly, the need to encourage students to be proud when they make a mistake as a mistake is always a great way of ensuring new learning.
So, in my class, I have students ring the bell. We call it a
Learning Opportunity
And the student who has made the error has the opportunity to inform others of what they have learnt from 'making the mistake'.
Students are always proud to share what they have learnt and it erases any shame or embarrassment commonly associated with the making of an error.
I hope you can use this idea in your classroom, too!
