Playing typing games is a fun way to learn keyboarding skills. Below are a few links to typing games your school age kids will enjoy.
http://www.freetypinggame.net/play.asp
http://www.gamequarium.com/typingghosts.html
http://www.bbc.co.uk/guides/z3c6tfr
https://www.typinggames.zone/
https://www.typingclub.com/