Grading Periods

MAMMOTH HIGH SCHOOL
2025/2026 GRADING PERIODS

FIRST MARKING PERIOD

Start = August 20, 2025
End = September 24, 2025
Eligibility List Published = October 2, 2025

Report Cards Viewable in Aeries = October 3, 2025
Semester = First / Fall

SECOND MARKING PERIOD

Start = October 1, 2025
End = November 5, 2025
Eligibility List Published = November 13, 2025
Report Cards Viewable in Aeries = November 14, 2025
Semester = First / Fall

THIRD MARKING PERIOD

Start = November 13, 2025
End = December 19, 2025
Eligibility List Published = January 8, 2026
Report Cards Viewable in Aeries = January 9, 2026
Semester = First / Fall

FOURTH MARKING PERIOD

Start = January 8, 2026
End = February 11, 2026
Eligibility List Published = February 19, 2026
Report Cards Viewable in Aeries = February 20, 2026
Semester = Second / Spring

FIFTH MARKING PERIOD

Start = February 19, 2026
End = April 8, 2026
Eligibility List Published = April 23, 2026
Report Cards Viewable in Aeries = April 24, 2026
Semester = Second / Spring

SIXTH MARKING PERIOD

Start = April 23, 2026
End = Last Day of School (TBD)
Eligibility List Published = TBAD
Report Cards Viewable in Aeries = TBD
Semester = Second / Spring