Whenever you export using advanced search with a filter expression, the order of the tiddlers in the resulting static page will match the order shown as search results. To order a small number of tiddlers in a specific manner, you can feed them as separate lists:
[[Introduction]] [[Example Screens]] [[Exercise]]
As your number of tiddlers increases, you can supplement this with other filters and lists and prepend/append tiddlers to modify the order at least to some extent.
I'd also be interested to know if there's another method to achieve a similar result.