The Vermont Department of Education says 73 percent of Vermont schools have not met increased targets under the federal No Child Left Behind Act.
The 2012 results were released Monday.
Officials say the increase was caused by a rise in standards, which go up every three years with the goal of 100 percent of students being proficient in math, reading and science by 2014. The final target increase was in 2011.
This year, 23 schools did not meet the standard for the first time and 198 have been identified as needing improvement. Of those, 120 were identified as needing improvement for the first time.
Vermont is moving toward a new way of measuring school performance, working with other states to develop new standards for math and literacy
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