We have used the Abeka’s Health, Safety, and Manners series.
https://www.abeka.com/ABekaOnline/ProductSearch.aspx?grade=&subject=HEAL&title=&sbn=&ods=
They are great for little children and easy to read. There is a teacher edition with lesson plans for each book but we have never used them. You can just add your own fun activities. There are sample pages in their website if you are interested.
