Physical activity gives your child an outlet for their anger/frustration. By allowing them to express their emotions in a healthy way, you are also giving them a way to calm themselves down.
Encourage your child to draw how they feel.
When your kid is throwing a temper tantrum, give them a piece of paper and a pencil and tell them to draw exactly what they feel.
Let them scribble it out.
They may draw nothing but angry scribbles, or they may go through four or five sheets of paper, but that’s okay.
Help them draw how they feel by drawing their feelings yourself.
This works best as a pre-emptive strike—if you see your child begin to get angry and frustrated, grab a piece of paper and a crayon and start to draw angry zig-zag lines. Ask them if that is how they feel, and prompt them to draw more and show you how they feel.
Acknowledge their angry feelings.
Tell your child that you can see they are angry. Validate their feelings.