In this smart board lesson students are introduced to the concept of subtraction. This interactive lesson first goes over what subtraction is. There are then problems that follow where students can drag clipart to create a problem. They can then drag x's over to show the subtraction within the picture. This lesson also goes over subtracting with a number line along with using subtraction to solve story problems. At the end of the lesson there is a subtraction dice game included in the lesson that students could do independently for extra practice.