edit.html.erb

<% form_for @board do |f| %> # form_for ( symbol or actual object ) do |(var)|
	<% f.label :title %>:
	<% f.text_field :title %><br />

	<% f.label :price %>
	<% f.text_field :price %><br />
	
	<% f.submit %>

<% end %>

The form helper created by form_for will pull properties :title and :price from the object passed in (@board). Note that you could also use :board if you don't have an object, but in this case form_for will pre-populate the fields :title and :price with @board.title and @board.price, respectively.