In 1991-92 Vermont initiated a statewide portfolio assessment program in mathematics and writing in grades 4 and 8. An evaluation of the program found mixed results--although the portfolio scores were unreliable for individual or school-level reporting and teachers had concerns about implementation, the assessment had marked positive effects on…

For the past five years, Vermont has been developing an innovative statewide assessment system in which portfolios of student work in mathematics and writing are a key element. The use of mathematics portfolios, particularly in elementary school, is a novel aspect of the assessment system. This study examines the elementary school mathematics…

This study explored fourth-grade teachers' understanding of mathematical problem solving, an aspect of the Vermont portfolio assessment program that has been largely ignored. Teachers' conceptions of problem solving, their knowledge of problem-solving strategies, their selection and evaluation of problem-solving tasks, and their instructional…