Here are a few iterations in my search for the correct format for the WEHM manual. Admittedly the older Parents Edition format is too nerdy and relishes in the school math absurdities rather than just stating them and stating the remedy. The Student’s Edition format and especially the newer two column format are much closer to the actual product. Unfortunately I have not had the time to fully transcribe the older formats, and so most of these samples are still in the Parents Edition format. The mathematical CONTENT however remains the same.
I currently have about 100 pages or 23 topics from 6-12th grade written up in the older Parent’s Edition format.

TWO COLUMNS FORMAT:Two columns book format vertex

STUDENT’S EDITION FORMAT:
Student’s Handbook format: parallel lines and the transversal

PARENT’S EDITION FORMAT(old):
These are three 8th grade topics.

parent’s edition- parallel lines

parent’s edition- vertical line tst

parent edition-dependent vs independent

EnVison Algebra 1 is one of Gates foundation’s supported books in their attempt to create “better” school math material. The experiment failed according to their own metrics. Read the review to find out why it could never have moved the needle this way.
Envision Algebra 1 : A short review of major issues

Here is an extensive competitive analysis, unfortunately not fully edited but very informative.competitive analysis cleaned up

And a very beta
market analysis

And a taste of the approximately 100 possible topics.
list of topics