Where are these rational practices to be taught and...

Where are these rational practices to be taught and acquired? Not within the four walls of a bare building, in which formality predominates... But in the nursery, play-ground, fields, gardens, workshops, manufactures, museums and class-rooms. ...The facts collected from all these sources will be concentrated, explained, discussed, made obvious to all, and shown in their direct application to practice in all the business of life.