This passage is based on an article published in 1996.
Topic
Preserving endangered Native American languages.
Framework
Problem / Solution (or maybe Old / New)
Main Point
There's a Problem - Native American languages are on the brink of extinction
There's a Solution - radio shows in native languages are great!
There's a Problem with the Solution - the internet is coming to more of these communities and it increases the threat of losing the native language (as people learn English in order to use the internet)
There's a Solution to the Problem with the Solution - make better radio shows in the native languages (not lessons, but fun stuff like interviews with old people, songs, and word games).
Putting that all together, you'd get something like this:
In order to continue the success radio shows have had in preserving endangered native languages in the face of the encroaching internet, the shows should focus on engaging formats over lessons.
Passage Map
P1 - Intro to Problem / Solution
The first three sentences have negative words that make us guess this passage is about a Problem: of 300, fewer than 150 survive / one third are near extinction / the decline is due to misguided policies
The Purpose Pivot halfway through (but, yet, however, recently) alerts us to the optimism the author has for the Solution.
P2 - More optimism for Solution
This paragraph fleshes out why radio shows are a great way of helping to preserve these endangered native languages.
P3 - New Problem / New Solution
This starts with another big Purpose Pivot (but, yet, however, recently). The author pours some pessimism on that optimism: the growth of Internet could counter the influence of radio.
Halfway down it switches to Solution by saying "Communities have a means to combat this trend". The final sentence is actually getting into prescriptive language, as the author says we should make radio programming more effective.
P4 - Author Supports their Solution
This paragraph explains what the "right" kind of radio programming would be.