PK.CD-10w Show understanding of first, next, and last during play and daily activities (answer questions about who is first and last to slide down the slide; say, "The engine is first, and the caboose is last" when making a train).
PK.CD-11 Children compare, sort, group, organize and measure objects and create patterns in their everyday environment.
PK.CD-11l Use descriptive language for size, length, or weight (short, tall, long, heavy, big).
PK.CD-11m Use simple measurement tools with guidance and support to measure objects (a ruler, measuring cup, scale).
PK.CD-11n Directly compare more than two objects by size, length, or weight ("That rock is heavier than these others; I can't lift it." Look at three strings that are different lengths and select the longest string).
PK.CD-11p Sort a group of objects (0-10) using one attribute (color, size, shape, quantity) with increasing accuracy (sort blocks by shape and place like-shaped blocks on the shelf; sort beads by color).
PK.CD-12l Use 2- and 3-dimensional shapes to represent real-world objects (say, "We are building a castle and we need a round block for the tunnel." "I glued a circle and a square on my picture to make a house.").
PK.CD-13 Children use mathematical thinking to solve problems in their everyday environment.
PK.CD-13e Seek answers to questions during play and daily activities using an increasing variety of mathematical strategies.
PK.CD-13f Use observation and counting with increasing accuracy to answer questions such as "How many do we need?" and "How many more do we need?" during play and other daily activities (count new children to see how many more plates are needed for snack; return extra drinks to cooler at picnic to arrive at the correct number).
PK.CD-13g Use drawing and concrete materials to represent an increasing variety of mathematical ideas (draw shapes to represent pattern; stack different-colored blocks to represent classmates' answers to a survey question).
PK.CD-13h Begin to explain how a mathematical problem was solved ("I saw that there was always a blue flower after a red flower so I knew to put a blue one next." "I counted four friends who didn't have cookies so I got four more.").