here is a list of useful books for teachers in order to get ideas about how soft practice skills at the primary level

Italian language

https://www.erickson.it/it/educare-le-life-skills

https://www.erickson.it/it/mondo-erickson/articoli/soft-skills-per-la-gestione-del-cambiamento/

Many digital and useful websites by Alessandra Serra, the teacher trainer. Have a look at the video page http://www.manidigitali.it/

website STEM
https://www.steampoweredfamily.com/education/stem-lesson-plans/