rails_galm/app/views/people/_form.html.erb

<% form_for @person do |f| %>
  <%= f.error_messages %>
  <dl>
    <dt><%= f.label :firstname %></dt>
    <dd><%= f.text_field :firstname %></dd>
    <dt><%= f.label :lastname %></dt>
    <dd><%= f.text_field :lastname %></dd>
    <dt><%= f.label :phone %></dt>
    <dd><%= f.text_field :phone %></dd>
  </dl>
  <p><%= f.submit "Submit" %></p>
<% end %>