I am in Math 146 and we are doing exploding dots assignment I am in the a group project and here is my instructions

In what grade level would you use this activity? You can use the following grade bands: k-2, 3-5, 6-8, 9-12. Use the Common Core Standards Placemats to help you decide the appropriate grade level and list the standard for this activity.

Map the progression of the mathematical topic through the grade levels from kindergarten to high school. Be sure that you use all grade bands when you write up your progression.

I have everything else but I am stuck and cant find the information for high school.