SOURCE: Arizona Department of Education, Arizona Mathematics Standards 3rd Grade, Sample Math Assessment Test Question
Arizona Mathematics Standards 3rd Grade & Introduction to AZ Math Standard
Math Lesson Curriculum Aligned to AZ Standard for Mathematical Practice 3.MP.4 Model with mathematics.

Mathematically proficient students apply the mathematics they know to solve problems arising in everyday life, society, and the workplace. When given a problem in a contextual situation, they identify the mathematical elements of a situation and create a mathematical model that represents those mathematical elements and the relationships among them. Mathematically proficient students use their model to analyze the relationships and draw conclusions. They interpret their mathematical results in the context of the situation and reflect on whether the results make sense, possibly improving the model if it has not served its purpose.

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