It's Raining Resources!: Growth Mindset Vs. Fixed Mindset. I think this would be a great activity to do with kids after explaining fixed vs. growth mindset. Start with empty speech bubbles and have the kids fill in the phrases according to what they think someone with each mindset would say.
Having a Growth Mindset has been shown to improve your ability to learn and develop your skills. Which mindset do you think you have? If you show signs of having a fixed mindset then don't worry - change is possible!