HI BP
I've been working with toddlers for 16+ years, and today I help parents as a parent coach understand their toddlers.
Terrible Two's happen, because the child has developed intellectually enough to understand they need to communicate their needs, but has not developed enough language skills to effectively communicate. It’s like being a 2nd year Spanish student and then moving to Mexico.
It also sounds like your child is trying to learn a new skill, but is struggling and asking for help from you, and getting frustrated when he isn’t getting the help he feels like he needs.
The key to leave terrible two free is to anticipate your child’s needs, provide him with the words he is missing and the praise and support all the time.
While I’m not sure what happens in speech therapy, let’s use getting dressed as an example, which you can translate to your other activities. Say your son is trying to button his shirt, a big task for a little guy, but he wants to learn. You are watching him struggle with each button, and you can see he’s feeling frustrated. Instead of watching him get angry, walk over and talk to him. Tell him what he is feeling (give him words), “I see buttoning that shirt is hard for you and you’re looking frustrated.” Next help him succeed, “I’ll show you how to do it and we’ll practice together.” Kneel behind your child so he can watch from the right point of view. Then you encourage him to try and praise for a good try. “Look at you, you almost got it. You should be proud of yourself. Great job!”
When a child feels he cannot do what he needs to and he cannot communicate his needs, he reverts back to what he knows, which his infant communication, i.e. tantrums.
Good Luck-
R. Magby