These mindfulness videos may be of use for your child. They were developed by two Primary School and Mindfulness teachers.

Dealing with Worry:

https://www.youtube.com/watch?v=TUdeyD2s3yk

Feeling Sad:

https://www.youtube.com/watch?v=TeHXLauDm4k

Dealing with Anger:

https://www.youtube.com/watch?v=N1vm-mujDWg

Kindness:

https://www.youtube.com/watch?v=zBJBjl-2PfQ