Don't forget the we can't teach the 4 operations in first year of primary school. Meanwhile, all the books from 1950 have them by lesson 2 and school was mandat

Don't forget the we can't teach the 4 operations in first year of primary school. Meanwhile, all the books from 1950 have them by lesson 2 and school was mandatory at that time. We homeschooled our kid for a few months due to her marvelous classmates, teacher and director, she wrote and learnt more than 4 years worth of study in Switzerland. Unfortunately she is highly sociable and we couldn't give her the constant "stream of kids" all day long.