### Standard 6: Number Sense and Numeration

In grades K-4, the curriculum should include whole number concepts and skills so that students can:
• Construct number meanings through real-world experiences and the use of physical materials
•
Benchmarks 9A (The Mathematical World: Numbers)
Numbers can be used to count things, place them in order, or name them.

Benchmarks 11B (Common Themes: Models)
A model of something is different from the real thing but can be used to learn something about the real thing.

Benchmarks 11D (Common Themes: Scale)
Finding out what the biggest and smallest possible values of something are is often as revealing as knowing what the usual value is.

• Understand our numeration system by relating counting, grouping, and place-value concepts

•
Benchmarks 9A (The Mathematical World: Numbers)
The meaning of numerals in many-digit numbers depends on their positions.

• Develop number sense
Benchmarks 9A (The Mathematical World: Numbers)
In some situations, "0" means none of something, but in others it may be just a label of some point on a scale.

Benchmarks 11D (Common Themes: Scale)
Almost anything has limits on how big or small it can be.

• Interpret the multiple uses of numbers encountered in the real world
Benchmarks 12B (Habits of Mind: Computation and Estimation)