The FOUNDATION program is for children 8 years & above AND those who are in/ completed Class 3.
Unlike the Junior Program this is a Graded-program viz. a child needs to do the first Level of this program before (s)he moves to the next level and so on irrespective of their Age and/or Class. (This is similar to how our curriculum system works.)
The Foundation program has 4 Levels named: Level 1, 2, 3 and 4.