We need to stop the practice of ambiguously written horizontal math - https://people.math.harvard.edu/~knill/pedagogy/ambiguity/index.html https://www.20min.ch/story/millionen-scheitern-an-dieser-mathe-gleichung-352991804940 https://www.nytimes.com/2019/08/05/science/math-equation-pemdas-bodmas.html - writing everything in elementary levels in simplistic left to right notation is the ultimate cause of this. The list of ambiguities, and inconsistencies, runs deep and has a long tradition. The fact that amateur math teachers think PEMDAS is immutable is precisely the problem. #math #teachers #mathteachers #mathematics #algebra #symbolicnotation