This reminds me of the “new math” from the sixties. The new math did much harm to so many students.
The new math was set theory and group theory, in the form of “clock arithmetic”. At least this is what I got in 9th grade as groundwork for algebra. It was real math, at least, and did teach the basics of Abstract Algebra.
Since then there has been “fuzzy math” and the “new new math.”