question.erb

<%= form_for @question do |f| %>
  <div class='field'>
    <%= label_tag :question %>
    <%= f.text_field :question_text %>
  </div>
  <div class='field'>
    <input type="button" id="add_answer" value="Add Answer" />
  </div>
  <div id='answers'></div>
  <div class='field'>
    <%= f.submit %>
  </div>
<% end %>