Simple stuff - using frames

This is a very simple question as I am a student trying my hand at a
simple rails app. How do you use html frames inside the RoR scaffold.
I can set the frame structure with no problem - but I am not sure how
to point each frame to a .rhtml file.

I tried this code just playing around

but I get the following error in each frame
Routing Error

no route found to match “/menu.rhtml” with {:method=>:get}

I’m not sure how to set the routing obviously

Thanks to anyone who can help me