Children can access Purple Mash at home to practice and develop their computing skills http://timuacademytrust.org.uk/iwade-home/curriculum/purple-mash/
Sign up for a free Code Break newsletter – helping children learn by solving puzzles, designing apps or coding art https://code.org/break
Codecamp World has freeonline coding resources for children aged 7-12 https://www.codecampworld.com/
Barefoot computing – Learning together activities – Fun and creative activities, built by teachers to help you guide your child through fundamental parts of the computing curriculum without the need for screen time. They include everything you need to get started with activity sheets and accompanying materials.
https://www.barefootcomputing.org/homelearning and Mini Missions to build computational thinking skills