Our modern educational paradigm starts at student learning. Then assessment methods for that learning are supposed to be designed and then appropriate teaching methods are developed. Thus all this talk about measuring outputs not inputs and the development of an industrial complex of testing companies.
Here is a Google Ngram which tracks the use of the words, teaching, learning, and testing over time. What does it prove? I would need to know more about the raw data. But here it is for what it’s worth. (Learning:red. Teaching:blue.Testing:green)