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# Measurement & Data

#### Represent and interpret data

Measurement is the assignment of a numerical value to an attribute of an object, such as the length of a pencil. At more sophisticated levels, measurement involves assigning a number to a characteristic of a situation, as is done by the consumer price index. Through their school experience, primarily in prekindergarten through grade 8, students should become proficient in using measurement tools, techniques, and formulas in a range of situations.

Another focus of this domain is for students to learn to formulate questions that can be answered using data and understand what is involved in gathering and using the data wisely. Young children can devise simple data-gathering plans to attempt to answer their questions. As students move through the elementary grades, they should spend more time planning the data collection and evaluating how well their methods worked in getting information about their questions. In the middle grades, students should work more with data that have been gathered by others or generated by simulations.

In first grade, children will use the landmarks they developed in Kindergarten to extend measurement to measuring indirectly. They begin to understand the importance of “unit” in both measuring and comparing quantities. Students will continue their experiences with time and money, while connecting these to counting and solving addition and subtraction problems. As students measure, they can collect and organize the data. Students can also ask and answer questions as they analyze the data.