"Our teachers are not taught how to teach but what to teach" [updated]

"Teaching in New Zealand is a highly regulated profession. You need a four-year degree ... at least two years on the job with a mentor ... and demonstrate that [you] adhere to six standards. You will not be surprised to learn that the first standard is to 'Demonstrate commitment to tangata whenuatanga and Te Tiriti o Waitangi partnership in Aotearoa New Zealand.' ...
    "Why, you may wonder, is it necessary for someone who wishes to teach maths to teenagers to hold a politically correct interpretation of a document signed in 1840? The ideological capture of the profession is not limited to this most important of the six principles. ...
    "[A]nalysis shows a heavy focus [at teachers college] on social justice and related fields, and only a small emphasis on the science of teaching, and on science itself. ... The analysis makes it clear: our teachers are not taught how to teach but what to teach. The only consolation is that, thanks to the lack of focus on the science of education, they are not very good at it."

~ Damien Grant, from his column 'The failure of New Zealand's teachers'

UPDATE:

Adding a data point for you (NB: Stephen Hicks's academic field is philosophy):