PRECISION (MP6) | PRISM

The information below comes directly from the Common Core State Standards. For each practice we have quoted the Standards document so you have the exact wording at your fingertips and included a link for you to go to the Common Core webpage from here to see this information in context. You can also follow the links on the bottom of the page to see where on the site we've highlighted this particular practice.

Mathematically proficient students try to communicate precisely to others. They try to use clear definitions in discussion with others and in their own reasoning. They state the meaning of the symbols they choose, including using the equal sign consistently and appropriately. They are careful about specifying units of measure, and labeling axes to clarify the correspondence with quantities in a problem. They calculate accurately and efficiently, express numerical answers with a degree of precision appropriate for the problem context. In the elementary grades, students give carefully formulated explanations to each other. By the time they reach high school they have learned to examine claims and make explicit use of definitions.