Lessons covered are:
Writing numbers to 100
Counting numbers forward and backward to 100
Counting objects to 20
Addition with objects
Subtraction with objects
Identifying the number of objects in a set
Common Core Standards
Count to 100 by ones and 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).
Understand the relationship between numbers and quantities; connect counting to cardinality.
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.