Lecture "Who are you and what did you do to my child" - How to deal with tantrums

Lecture "Who are you and what did you do to my child?!" Tantrums - why do they happen and how do you deal with them! A tantrum is the moment when emotion controls us and not us. Loss of control. Why does it happen? Common mistakes? How can we parents prevent / reduce tantrums And more importantly, understand what our child is learning from all this for life