A new streamlined high-school assessment system, due to be unveiled today, is expected to drastically reduce the number of bits of learning being assessed.

The major shake-up of the National Certificate of Educational Achievement (NCEA) will reverse the proliferation of more than 9300 "standards", or units of learning, that have been approved since NCEA started in 2002.

Many standards, which can be worth as little as 2 or 3 credits towards the 80 credits required for each level of NCEA, will be brought back together into larger blocks of learning for each subject - a step back towards the more