Construct number meanings through real-world experiences and the use of physical materials

Standard 7-1 page 41, Grades K-4

Develop meaning for the operations by modeling and discussing a rich
variety of problem situations

Standard 2-2 page 26, Grades K-4

Reflect on and clarify their thinking about mathematical ideas and
situations

Relate their everyday language to mathematical language and symbols

Standard 3-2 page 29, Grades K-4

Use models, known facts, properties, and relationships to explain their
thinking

Standard 4-3 page 32, Grades K-4

Recognize relationships among different topics in mathematics