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# National Standards for Grade 4 - Mathematics (page 3)

National Assessment Governing Board
Updated on Mar 14, 2011

#### Measurement

In this NAEP Mathematics Framework, attributes such as capacity, weight/mass, time, and temperature are included, as well as the geometric attributes of length, area, and volume. Although many of these attributes are included in the grade 4 framework, the emphasis is on length, including perimeter, distance, and height.

Units involved in items on the NAEP assessment include non-standard, customary, and metric units. At grade 4, common customary units such as inch, quart, pound, and hour and the common metric units such as centimeter, liter, and gram are emphasized. Converting from one unit in a system to another (such as from minutes to hours) is an important aspect of measurement included in problem situations. Understanding and using the many conversions available is an important skill. There are a limited number of common, everyday equivalencies that students are expected to know.

Items classified in this content area depend on some knowledge of measurement. For example, an item that asks the difference between a 3-inch and a 1¾-inch line segment is a number item, while an item comparing a 2-foot segment with an 8-inch line segment is a measurement item. In many secondary schools, measurement becomes an integral part of geometry; this is reflected in the proportion of items recommended for these two areas.

 Grade 4 1) System of measurement a) Select or use appropriate type of unit for the attribute being measured such as length, time, or temperature. b) Solve problems involving conversions within the same measurement system such as conversions involving inches and feet or hours and minutes. c) Determine appropriate size of unit of measurement in problem situation involving such attributes as length, time, capacity, or weight. d) Determine situations in which a highly accurate measurement is important.