Grade 1 : 6 – 7 yrs old
Grade 2: 7 – 8 yrs old
Grade 3: 8 – 9 yrs old
Grade 4: 9 – 10 yrs old
Grade 5: 10 – 11 yrs old
Grade 6: 11 – 12 yrs old
Grade 7: 12 – 13 yrs old
Grade 8: 13 – 14 yrs old
Grade 9: 14 – 15 yrs old
Grade 10: 15 -16 yrs old
Grade 11: 16 – 17 yrs old
