Use of numbers to reason quantitatively and explain the units for a given problem.
Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.
Define appropriate quantities for the purpose of descriptive modeling.
Choose a level of accuracy appropriate to limitations on measurement when reporting quantities.
Given an object or situation the student should be able to determine how accurate they need to be using appropriate units. Depending upon the situation such as 68 miles per hour could be described as 70 miles per hour. The accuracy for measurement of a table length could be to the nearest inch.
This is the fulton county schools over view of the standards that must be mastered in Unit 1.
Source: Fulton County Schools
How to write an algebraic expression