I could remembered when I was learned at elementary school.it's very fun,and not stress because lessons in elementary school it's very basic example reading a book,count numbers,and multiplication table,so this is easy,whereas I was learn at high school.it was very difficult because learned about formula math,physics,and chemistry.This subjects very complicated to understood,so when I learn about this subject I felt stress,and I didn't fun alike elementary school.in elementary school don't had