Bible Belt Balabusta has a brilliant way to help young children understand Teshuva:

"Yom Kippur liturgy features archery imagery: missing the mark (“al chet,” which is the closest thing Hebrew has to the word “sin”) and hitting the mark. Torah is sometimes translated as “to take aim.”

Think of this as an enrichment activity suitable for kids who have already been exposed to Yom Kippur practices, and for a class which has already explored teshuvah"

Access instructions HERE