Hi. You're lucky getting that rates. Here in Ontario depenginger on the location I've heard the going rate is $7 for before and $12 to $15 for after.

In regards of how your environment should be set, you can get a lot of ideas online google it, also search for homeschooling ideas they have wonderful fun ideas. I remember also there is a textbook "school age......"; I will find the book and let you know it gives great ideas on how to set environments for school agers, I took a course for after school programs.