Foundational Standards PK.CC.1Count to 20. PK.CC.2Represent a number of objects with a written numeral 0–5 (with 0 representing a count of no objects). PK.CC.3 Understand the relationship between numbers and quantities to 10; connect counting to cardinality. a.When counting objects, say the number names in the standard order, pairing each object with one and only one number name and each number name with one and only one object. b. Understand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted. c. Understand that each successive number name refers to a quantity that is one larger. PK.CC.4 Count to answer “how many?” questions about as many as 10 things arranged in a line, a rectangular array, or a circle, or as many as 5 things in a scattered configuration; given a number from 1–10, count out that many objects. PK.CC.6 Identify “first” and “last” related to order or position. Focus Standards for Mathematical Practice MP.2Reason abstractly and quantitatively. Students represent quantities with numerals. MP.3Construct viable arguments and critique the reasoning of others.Students reason about each other’sways of counting fingers or a scattered set of objects. They reason about counting fingers by comparing the fingers counted and about scattered objects by comparing counting paths through a set of up to 10 scattered objects. MP.4 Model with mathematics.Students model decompositions of three objects as math drawings and addition equations. MP.7 Look for and make use of structure. Students use the 5-group to reason about numbers within 10. MP.8Look for and express regularity in repeated reasoning.Students build a number stair to reason about 1 more and 1 less than each number within 10.