# Clip 1/13: Standard 2: Reason Abstractly & Quantitatively Using Number Operations Part B

## Overview

*Mathematically proficient students make sense of quantities and their relationships in problem situations... Quantitative reasoning entails habits of creating a coherent representation of the problem at hand; considering the units involved; attending to the meaning of quantities, not just how to compute them; and knowing and flexibly using different properties of operations and objects.*

Tracy Sola asks the students in her transitional kindergarten class to represent five nuts using square tiles. Students are at the beginning of decontextualization of the problem and representing the quantity while considering the units involved.