def create
  @student = Student.new(student_params)
  if @student.save
      redirect_to '/pages/tlanding'
    else
  redirect_to '/pages/newaccount'
end
end

<%= form_for Student.new do |f| %>
firstname:<%= f.text_field :name %> <br/>
username:<%= f.text_field :username %> <br>
password:<%= f.text_field :password %> <br>
<%= f.hidden_field :teacher_id, :value => @current_user.id %>
<%= f.submit %>
<% end %>