Feel Your Best Self https://feelyourbestself.collaboration.uconn.edu/   A elementary classroom-based resource for K to 5.

FYBS is designed for elementary-aged kids as an educational toolkit for learning strategies to calm yourself, catch your feelings, and connect with others. The FYBS strategies offer fun and easy ways to help kids (and grown-ups) experience lifts in emotions, feeling, or mood. Using FYBS, kids explore different strategies to find those that work best to help them navigate different situations to feel their best self.