The phrase "are merely taught" is correct and usable in written English.
It can be used to indicate that someone is being instructed or educated in a way that lacks depth or complexity.
Example: "Many students in the education system are merely taught to memorize facts rather than to think critically."
Alternatives: "are simply instructed" or "are just educated".
We are merely teaching them to pass a test.
As with many tests, some critics contend that Texas teachers are merely "teaching to the test," that they have become exclusively focused on test preparation.
Language learners in the control group were merely taught the grammatical features of the language to be learned.
Stanley M. Fisk, the Jasper dean who specializes in goading Aldiss's students, tells Alex: "He wants everyone who is watching — and the nine of you are not the only ones watching, you have to know that — to believe he is merely teaching a literature course.
But in the vast majority of cases these are merely hygiene factors, which, as Herzberg taught us, cause dissatisfaction if they aren't good enough, but do not increase satisfaction if you over-deliver.
Improvements in test results, in her eyes, are merely evidence that Edison concentrates on teaching children to pass the test, rather than adapting tuition to the different needs of different children.Ms Wynns and her allies in the progressive faction intend to cancel Edison's charter.
We do not respect some of the most important people in our society, demeaning them with statements like "Those who can, do, those who can't, teach," and "Teachers are merely glorified babysitters".
I wonder if Boies fully realizes that the lawsuits he is fronting for are merely props in assault on the teaching profession, as well as unions and the democratic governance of public schools.
He said that his mission was not merely teaching the laws of Judaism, but bringing communities together and helping people lead better lives.
