The assessment of student achievement in mathematics is discussed. Different approaches should be used to ascertain student achievement of objectives in the mathematics curriculum. Some methods are subjective, such as rating scales, and these can be very useful. Among more objective approaches is the use of standardized tests. There is a number of disadvantages to the use of standardized tests, especially in the distance of the test developer from the student. Criterion referenced tests contain objectives that teachers may use as guidance for instruction. Portfolios are another approach to mathematics assessment. Though they have many advantages over standardized norm-referenced tests and criterion referenced tests, they have their own disadvantages in scoring difficulties and difficulties of interpretation. It may be that both standardized testing and portfolio assessment should be used to gain a better picture of student achievement in mathematics. (SLD)