"you are setting up a preschool for 3-4 year olds. knowing what you do from piaget and erikson, name 5 things that you would make sure you had in the class for the students, to ensure positive development and give your reason for each." i am looking for a pretty simplified answer

1. A mat: this mat can be in the center of the classroom and your preschoolers can often come to the mat and have discussions.
2.Toy box: kids love toys, I would suggest building blocks for your preschoolers.
3. Paint board: yes it may get messy sometimes, but I am sure they would have tons of fun painting and reflecting there creativity.
4.Books: of course age appropriate...mainly for those who like alone time.
5. Tv: might have to be my favorite! Perhaps you want to take the time and let them watch a movie once a week, maybe even in another language.

Is that a negative 22 or a positive?

It depends on the numbers, of people who were in the area. for you can not determine those who suffered minor injuries, without more information.