Which stage of personality development challenges young people to succeed in school?

Which stage of personality development challenges young people to succeed in school?
-delevop skills

I'm not ment for this question

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other.