# Category: Counting and Cardinality Lessons

Counting and Cardinality Lessons - Common Core CCSS. Math.Content. K.CC.A.1 Count to 100 by ones & by tens. Count forward beginning from a given number within the known sequence (instead of having to begin at 1). Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects). K.CC.B.4 5 a b c Understand the relationship between numbers and quantities; connect counting to cardinality. When counting objects, say the number names in the standard order, pairing each object with one & only one number name & each number name with one & only one object. Last number name said tells the number of objects counted. Number of objects is the same regardless of their arrangement or the order in which they were counted. Each successive number name refers to a quantity that is one larger. Count to answer “how many?” questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1–20, count out that many objects. K.CC.C.6 7 Identify whether the number of objects in one group is greater than, less than, or equal to the number of objects in another group by using matching and counting strategies. Compare two numbers between 1 &10 presented as written numerals.

## Numberblocks –

Numberblocks – Build concepts of composing, decomposing, adding, subtracting. Unfix Cubes are suggested to go along with this. Can be done with a whiteboard, but the hands on building is important. One – Learn to count to five using the number one. Two – Add and subtract 1 to make number 2 bigger or smaller. …