Hi CESCHOOL,
We have lots of resources for you! Check out these articles that will give you all the basic information you need:
School Carnival Planning Basics
Classic Carnival Activities
School Carnival Planning Basics: https:/classic.ptotoday.com//pto-today-articles/article/1131-school-carnival-planning-basics
Classic Carnival Activities: https:/classic.ptotoday.com//pto-today-articles/article/1088-classic-carnival-activities
Three Creative Carnival Ideas: https:/classic.ptotoday.com//pto-today-articles/article/1089-three-creative-carnival-ideas
Carnivals and Fairs on our File Exchange : https:/classic.ptotoday.com//filesharing/category/74-carnivals-a-fairs
this board: http://pinterest.com/ptotoday/fall-carnival-ideas/