title: link_to path definition
body: <p>I am developoing a <strong>Rails v2.3.2</strong> app.</p>
  
  <p>I have a controller:</p>
  
  <pre><code>class SchoolController &lt; ApplicationController
    ...
  
    def edit
      @school=School.find_by_id params[:id]
  
    end
  
    def check_teachers
      @teachers = @school.teachers
      ...
    end
  
  end
  </code></pre>
  
  <p>in <code>app/views/schools/edit.html.erb</code> I would like to have a <code>link</code>, click on it will trigger the <code>check_teachers</code> method in the <strong>controller</strong>, how to define the <strong>path</strong> for this <code>link</code>?</p>
  
  <p>app/views/schools/edit.html.erb :</p>
  
  <pre><code>link_to 'Check teachers' WHAT_IS_THE_PATH_HERE
  </code></pre>