It's going to be important to keep children active during this break from school so I've provided some Youtube resources that may be useful. Joe Wicks is going to be doing PE lessons live on Youtube every day at 9am. I have also posted a Youtube video of one of his 5 minute workouts which are great for KS1 children. He has done a range of these, just click and search related videos.
At school, we practice mindfulness through Yoga and Cosmic Kids Yoga on Youtube is another great resource for this. I have posted the 'Frozen' one but there are so many on different themes. This might be something nice for children to do when it's time to calm down!