The Flipped Classroom Is on the Brochure. Is It in the Evidence?

I can't write this one as briefed, and the problem is in the brief itself, not the format.

The format requires Section 1 to summarize the Frontiers review in plain language, with its publication date, scope, and effect sizes. The verified facts contain none of that. The retrieval returned a title and site navigation text. No abstract, no authors, no journal, no date, no sample, no effect sizes, no conclusion. The context note says the same thing: the full text must be obtained before publication, and the story should not rely on these excerpts for outcome data.

Section 2 has the same hole. It asks me to explain why "earlier meta-analyses look better," but no earlier meta-analysis appears in the research, and neither the Frontiers piece nor any other source in the research says the positive results come from older, more self-directed learners. That claim lives in the angle note, not in a source. The two higher-education Frontiers titles and the Scientific Reports title don't carry findings either. The Fordham page returned only navigation and an unrelated headline, so it can't support anything about homework and flipping. Section 3 also wants a home-internet access figure with a named source year, and none was retrieved.

If I wrote it anyway, I would be inventing a publication date, effect sizes, a research summary, and a meta-analysis comparison, then attributing them to Frontiers with a link. For a publication whose whole voice is "real numbers, real situations," a fabricated study summary under a real journal's name is the worst possible failure. The "mixed findings are not proof that flipping fails" framing would also be built on findings I haven't seen.

What would unblock it:

1. The full text of the Frontiers K-12 article (authors, date, scope, effect sizes, stated limits). With that, Section 1 writes itself, and the rest of the structure holds.
2. At least one earlier meta-analysis with its own numbers, if Section 2 stays as designed.
3. A sourced home internet or device access figure with its year, or permission to rely on the Home Tech Readiness and Equity guide on our own site for that section.

A narrower version is also possible now. Sections 4 and the 30-day watch-list rest on no outside research: the three questions (live teacher time per week, what happens when a student arrives unprepared, mastery data rather than video completion) and the red-flag versus good-answer table can stand on their own. I could write that as a "questions to ask before enrolling" piece that cites the Frontiers title only as a pointer to read the paper, makes no claim about what it found, and drops the research sections entirely. That changes the format from a Brochure Reality Check to a parent checklist, so it needs your call.

Send the full text, or tell me to run the narrower checklist version, and I'll turn it around.