Not only is this more economical, but both types of lines can be used together. Suggestions for these may be used as appropriate for the child. The enclosed grid can be used when appropriate but it is not always necessary. Design forms and forms of knowledge are only meaningful if a child can discover them. They should not be taught didactically.
Children explore the world through play.
A young child should always begin play with a Gift using Forms of Life. Children always enjoy building things from their own world and representing whatever is familiar is a wonderful experience for young children. As with all the Gifts, it is important to remember not to give the child too many pieces at once, or allow the child to leave them scattered. Froebel believed that nothing in the world is ever destroyed - only modified. To keep with that idea, the child should keep changing a creation rather than starting over.