I need new ideas for real and found items for centers - especially blocks and math. Lets share the things we use so we'll all have some new ideas. Here's my favorite for the block center: My favorite free real and found item for the block center is to save plastic food containers of all kinds. Any container with a snap on lid is great - margarine, cottage cheese, whipped topping, cake frosting, etc. - there are dozens of them. I love this idea for several reasons: they are free, you're recycling, they can be stacked, the kids match lids to containers by size and shape(math), by the designs/logos on both(literacy), putting on/taking off the lids is great for fine motor skills. Just start saving and ask parents and other teachers to save for you.