Benchmark 9B: The Mathematical World - Symbolic Relationships
(grades K-2, page 217)
 

Similar patterns may show up in many places in nature and in the things people make. (1 of 2)

Standard 13-1 page 60, Grades K-4
Recognize, describe, extend, and create a wide variety of patterns

Sometimes changing something causes changes in something else. In some situations, changing the same thing in the same way has the same result. (2 of 2)

Standard 13-2 page 60, Grades K-4
Represent and describe mathematical relationships