The Tonga Government is working with a team from the Secretariat of the Pacific Community to reach student achievement levels.
The Tonga Prime Minister and Minister of Education, 'Akilisi Pohiva, says an audit of primary and senior secondary students shows pass rates have declined over the past 13 years.
He says the audits show just 17 percent of mathematics students passed the Secondary Entrance Examination in 2014, compared with 31 percent in 2002, a decline of more than 40 percent.
The results in English were down to 20 percent from 23.
Mr Pohiva says other analysis shows pass rates in most Form five subjects for the period 2007-2014, were below 20 percent, which is a cause for serious concern.
Science and Agriculture had 5th Form pass rates of just 15 percent and in Mathematics, about 200 students passed out of the average annual enrolment of 1700.