question about form with one-to-one models

For example, I have two models Person and Address, that one person has one address.

class Person < ActiveRecord::Base has_one :address end

class Address < ActiveRecord::Base belongs_to :person


Now, I want to write a form to create a person including an address

<%= text_field 'person', 'name', :size => 10 %>

<%= text_field 'person', '' %>

# i think it will map to , but it doesn't work, how can i do it? ......