Before I give my opinion on this, let us try to define first what is K12. K12 is a term used in education from the first world countries. It refers to grades from kindergarten (K) and the 1st through the 12th grade (1-12). This setup might be familiar with other people. It is even a normal setup for many. However, in the Philippines, it is a different setting. Primary education here starts from nursery up to kindergarten. There's nursery 1 and 2, kindergarten 1 and 2, grades 1 to 6, and for the high school, it's from 1st year to 4th year. The following is a usual age mapping for these education levels: Age Level 3 Nursery 1 4 Nursery 2 5 Kinder 1 6 Kinder 2 7 Grade 1 8 Grade 2 9 Grade 3 10 Grade 4 11 Grade 5 12 Grade 6 13 1st year high school 14 2nd year high school 15 3rd year high school 16 4th year high school ----------------------------------- 17 1st