Benchmark 9A: The Mathematical World - Numbers
(grades 3-5, page 212)

• The meaning of numerals in many-digit numbers depends on their positions. (1 of 4)
• Standard 6-2 page 38, Grades K-4
Understand our numeration system by relating counting, grouping, and place-value concepts
• In some situations, "0" means none of something, but in others it may be just a label of some point on a scale. (2 of 4)
• Standard 6-3 page 38, Grades K-4
Develop number sense
• When people care about what is being counted or measured, it is important for them to say what the units are (three degrees Fahrenheit is different from three centimeters, three miles from three miles per hour). (3 of 4)
• Standard 10-2 page 51, Grades K-4
Develop the process of measuring and concepts related to units of measurement
Standard 13-4, page 116, Grades 5-8
Understand the structure and use of systems of measurement.
• Measurements are always likely to give slightly different numbers, even if what is being measured stays the same. (4 of 4)
• Standard 10-2 page 51, Grades K-4
Develop the process of measuring and concepts related to units of measurement
Standard 13-1, page 116, Grades 5-8
Extend their understanding of the process of measurement