This product is great for teaching about growth mindset. I used in conjuction with the book "The Dot" by Peter H. Reynolds and discussed with my students how changing something as simple as our words could change our whole outlook on things and ensure that we stay life-long learners.
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.