The National Examination Council of Tanzania (NECTA) released the 2015 National Form Four Examination results that show a drop in performance from 68.33 per cent in 2014 to 67.53 per cent.
Announcing the results in Dar es Salaam, NECTA Executive Secretary Dr Charles Msonde told reporters that the results had been graded using the Division System unlike the Grade Points Average (GPA) grading system applied last year following recommendations by stakeholders.
He said out of 433,633 candidates who sat for the exams last year, 272,947 passed, with mathematics recording the worst score with more than 80 per cent of the students failing.
Dr Msonde said the overall performance has been poor whereas only 24.7 of the candidates managed to attain Division One, Two and Three during last year's exams with the pass mark for most of the papers averaging below 50 per cent.
On individual performance, Butogwa Shija of Canossa Secondary School is the overall best student whereas others in the top ten list and their schools in brackets are Congcong Wang (Feza Girls), Innocent Lawrent (Feza Boys), Dominic Aidano (Msolwa), Sang'udi Sang'udi (Ilboru), Asteria Chilambo (Canossa), Belinda Magere (Canossa), Humphrey Kimanya (Msolwa), Bright Mwang'onda (Marian Boys) and Erick Mwang'ingo (Marian Boys).
The top tem schools are Kaizirege (Kagera), Alliance Girls (Mwanza), St Francis Girls (Mbeya), Alliance Boys (Mwanza), Canossa (Dar es Salaam), Marian Boys (Coast), Alliance Rock Army (Mwanza), Feza Girls (Dar es Salaam), Feza Boys (Dar es Salaam) and Uru Seminary (Kilimanjaro).
The ten worst performing schools are Pande (Lindi), Igawa (Morogoro), Korona (Arusha), Sofi (Morogoro), Kurui (Coast), Patema (Tanga), Saviak (Dar es Salaam), Gubali (Dodoma), Kichangani (Morogoro) and Malinyi (Morogoro). Dr Msonde said their analysis show that the performance is very low whereas pass mark in most of the subjects is below 50 per cent.
"The number of candidates who attained division one, two and three is almost quarter of all candidates who sat for the exams, this calls for special efforts to improve the pass mark for improved education sector," said Dr Msonde.
He said the council would issue an analysis of performance per subject so that they can be used by the teachers, students and other stakeholders for improved teaching methodology and learning skills.
Dr Msonde said they cancelled the results of 87 candidates for cheating whereas 121 will have to re-do their examination this year as they failed to sit last year on medical grounds.
On the grades, Dr Msode said Division One will be for points 7-17, Division Two-18-22, Division Three-22-25, Division Four-26-33 whereas Failure will be 34-35.
Last month, the Minister for Education, Science, Technology and Vocational Training, Prof Joyce Ndalichako, ordered NECTA to abolish GPA grading system and re-introduce Division System, describing the former as inefficient and unproductive.