Do I as a parent need to help my child, or can they do it on their very own?

This all depends on the age of your children and their maturity level. The younger the child the more they will need one of their parents there to help them “slow down” and remember the instructions. Only you know your child and if they will rush through the project. You are there to slow them down and guide them. If you can trust your child in this way then you do not need to be involved at all.