IBIT on "Navigating to a specific spot on a page in WP"

I'm using the Twenty Twelve theme and have some extremely long pages. I'd like to create hyperlinks that enable a reader to jump to specific spots on the page. I used to be able to do this on my old, defunct Web site, but can't seem to do it in WP. Have tried the old HTML tricks a name and a id -- and yes, I did include the hashtag at the anchor point, but nothing works. Is there a way to this that I haven't tried yet, or is it just something that WP won't allow?

Thanks.