At least in the US, Jr. High usually starts at grade 6, but in Kaldus, that would start at grade 5. This means every category of grade school will be in 4 grades. As for math, the student should be able to understand Exponents, pre-algebra, and basic geometry. They will also be given the opportunity to choose a second language as an elective. Every Junior High School student will be given the option to have 1 elective. Again, since I am not well endowed with how grade schools should operate, this will be the extent of changes that will be made.