See below for some incredible blogs on maths teaching – the world is maths!
Hin-Tai Ting:
https://mathagogy.wordpress.com/author/hingie/
Dani Quinn:
https://missquinnmaths.wordpress.com/
Naveen Rizvi:
http://conceptionofthegood.co.uk/
Jemma Sherwood:
https://jemmaths.wordpress.com/author/jemmaths/
Kris Boulton:
https://tothereal.wordpress.com/