PK.CD-10l Compare visually two groups of objects that are obviously equal or unequal in quantity and communicate that they are the same or different, and which one has more (choose a plate with four cookies rather than a plate with one cookie).
PK.CD-11g Use simple measurement tools with guidance and support to measure objects (a ruler, measuring cup, scale).
PK.CD-11h Compare the size or weight of two objects and identify which one is longer/ taller/heavier than the other ("That rock is heavier than this one; I can't lift it." "A snake is longer than a worm.").
PK.CD-13 Children use mathematical thinking to solve problems in their everyday environment.
PK.CD-13b Seek answers to questions by using mathematical thinking during play and daily activities (determine who is taller by standing next to classmate; find two smaller blocks to replace larger block).
PK.CD-13c Use observation and counting (not always correctly) to find out how many things are needed during play and other daily activities (figure out how many spoons are needed for snack, find enough dolls so each person has one when playing in the dramatic play area).
PK.CD-13d Use drawing and concrete materials to represent mathematical ideas (draw many circles to show "lots of people," put Popsicle sticks in a pile to show the number of children who want crackers for snack).